Series II Introduction This catalog covers the Amphenol MIL-C-26482, Series 2 Connectors. These connectors are bayonet coupling type, and they feature crimp contacts that are rear insertable and rear releasable. They can be ordered through Amphenol, by military or equivalent proprietary part numbers. The connectors covered in this catalog broaden the miniature cylindrical family offered by Amphenol, so that now users have the broadest range of product available to them. Should more information be required concerning the connectors covered in this publication, or if special application needs arise, please contact factory : Page Contents Introduction 1 General description, features & benefits 2 Class descriptions, performance specifications 3 Insert Arrangement Chart 4 Insert Alternate Positions Insert Arrangement Patterns 5-7 Shell Styles, Dimensional Data : Wall Mounting Receptacle, Narrow Flange 8 Wall Mounting Receptacle Wide Flange 9 Cable Connecting Receptacle 10 Jam Nut Receptacle 11 Straight Plug, Straight Plug With RFI Grounding Fingers 12 Contact Information, Sealing Plugs, Crimping & Insertion/Removal Tools 13 Ordering Information 14 1 AMPHENOL Series II Amphenol Miniature Cylindrical MIL-C-26482, Series 2 Connectors Amphenol broadens their Miniature Cylindrical Family of Connectors with the addition of the product line of MIL-C-26482, Series 2 connectors. This series provides a bayonet coupling connector with crimp rear insertable, rear releasable contacts. MS3470 wall mounting receptacle with narrow flange DESIGN CHARACTERISTICS Medium size, environmentally resistant connector MS3472 wall mounting receptacle with wide flange Recommended operating voltage to 1000 VAC (RMS) at sea level Quick positive coupling assured by 3 point bayonet coupling system Visual confirmation of complete coupling Eliminates mismating by the use of five key/keyway design Insertion and removal of contacts from the rear of the connectors assures no damage to the front that might affect the sealing characteristics MS3471 cable connecting receptacle Utilizes same standard qualified rear release type plastic tool for contact insertion and removal Contacts are qualified to MIL-C-39029 requirements - BIN coded (three colour bands), and are crimped with standard crimp tools per MIL-C-22520 Grommets are constructed of tear-resistant elastomer and experience no degradation when exposed to a broad range of fluids Sealing over a range of wire diameters is assured by a triple webbed grommet at the rear of the connector MS3474 jam nut receptacle Closed entry socket side of the insert is designed with a lead-in chamfer and a hard face that will accept a pin contact bent within pre-established limits Elastomer interfacial seal on the pin side has raised barriers around each pin which displace into the socket chamfer when mated, providing a positive moisture seal CUSTOMER OPTIONS Shell styles within this family include: Wall mount with either a narrow or a wide flange, jam nut single hole mount, and cable connecting receptacles, along with standard plugs or plugs with RFI grounding fingers, in shell sizes 8 to 24 MS3476 straight plug MS3475 plug with RFI grounding fingers MS and Proprietary versions available Accommodation of contact sizes 20, 16 and 12 34 insert arrangement patterns available, accommodating from a minimum of 3 to a maximum of 55 circuits Alternate positioning available Various finishes are available (for information on non-cadmium zinc cobalt plating, consult factory) AMPHENOL 2 Series II Amphenol Miniature Cylindrical MIL-C- 26482, Series 2 Connectors class descriptions, performance specifications CLASS DESCRIPTIONS Military MIL-C-26482, Series 2 Description Class L Aluminum shell, electroless nickel finish, fluid resistant Class E Inactive, superceded by Class L* Class R Inactive, superceded by Class L* Class A Aluminum shell, black non-conductive anodized finish, fluid resistant - Proprietary class G - Stainless steel shell, passivated, fluid resistant Class W Aluminum shell, olive drab cadmium plated, corrosion/fluid resistant * Ref. MIL-C-26482 PERFORMANCE SPECIFICATIONS SERVICE RATINGS** Recommended Operating AC Voltage at Sea Level Sea Level I 600 1,500 II 1,000 Service Rating Test Voltage AC (RMS), 60 cps 2,300 50,000 ft. 70,000 ft. 110,000 ft. 500 375 200 750 500 200 ** Service rating is comparable to MS rating A. Miniature connectors rated Service Rating I will provide a minimum flashover voltage at sea level of 2000 volts AC (RMS). Service rating II is comparable to MS Service Rating D, and will provide a minimum flashover voltage of 2,800 volts AC (RMS) at sea level. Please note that the electrical data given is not an establishment of electrical safety factors. This is left entirely in the designer's hands, as he can best determine which peak voltage, switching surges, transients, etc. can be expected in a particular circuit. OPERATING TEMPERATURE RANGE SHOCK AND VIBRATION REQUIREMENTS -650 C (-850F) to 2000 C (3920F) When tested as follows, the connector shall sustain no physical damage, or electrical discontinuity exceeding one microsecond. ENVIRONMENTAL SEAL Wired, mated connectors with the specified accessory attached will meet the altitude immersion test specified in MIL-C-26482. SHOCK Pulse of an approximate half sine wave of 300g magnitude with duration of 3 milliseconds applied in 3 axes DURABILITY VIBRATION Minimum of 500 mating cycles. Sixteen hours of random vibration having a range of 50 to 2,000 Hz with a 41.7G peak level 3 AMPHENOL Series II Miniature Cylindrical MIL-C-26482, Series 2 insert arrangements, insert alternate positioning INSERT ARRANGEMENTS INSERT ALTERNATE POSITIONING Contact Size Insert Arrangement Service Rating Total Contacts 8-33 I 3 3 8-98 I 3 3 10-6 I 6 12-3 II 3 12-8 I 8 12-10 I 10 14-4 I 4 14-5 I 5 12 16 20 6 3 To avoid cross-plugging problems in applications requiring the use of more than one connector of the same size and arrangement, alternate rotations are available as indicated in the chart below. As shown in the diagram, the front face of the pin insert is rotated within the shell in a clockwise direction from the normal shell key. The socket insert would be rotated counter-clockwise the same number of degrees in respect to the normal shell key. B A B + A A 4 B A 10 B 8 5 14-9 I 9 14-12 I 12 4 8 14-15 I 15 1 14 14-18 I 18 18 14-19 I 19 19 16-8 II 8 8 16-23 I 23 1 16-26 I 4 5 26 I 8 18-11 II 11 11 18-30 I 30 1 18-32 I 32 20-16 II 16 I 20-39 I 39 20-41 I 41 22-12 2 12 22-19 I 19 19 22-21 II 21 22-32 I 32 22-41 I 41 22-55 I 55 22-95 I 32 6 24-19 II 19 19 I 31 24-61 I 61 AMPHENOL Degrees Y Z 90 - - - 8-98 - - - - 10-6 90 - - 12-3 - - 180 - 12-8 90 112 203 292 12-10 60 155 270 295 29 14-4 45 - - - 32 14-5 40 92 184 273 14-9 15 90 180 270 24 14-12 43 90 - - 37 14-15 17 110 155 234 14-18 15 90 180 270 14-19 30 165 315 - 16-8 54 152 180 331 16-23 158 270 - - 16-26 60 - 275 338 32 18-8 180 - - - 27 18-11 62 119 241 340 55 18-30 18 193 285 350 26 18-32 85 138 222 265 20-16 238 318 333 347 20-24 70 145 215 290 20-39 63 144 252 333 20-41 45 126 225 - 22-12 - - - - 8-33 22 21 14 Position Z X 41 12 Position Y W 16 I 24-31 Insert Arrangement 8 24 Position X View looking into front face of pin insert or rear of socket insert. 26 18-8 20-24 Position W 31 61 4 22-19 15 90 225 308 22-21 16 135 175 349 22-32 72 145 215 288 22-41 39 135 264 - 22-55 30 142 226 314 22-95 26 180 266 - 24-19 30 165 315 - 24-31 90 225 255 - 24-61 90 180 270 324 Series II Contact Legend Miniature Cylindrical MIL-C-26482, Series 2 Symbol Contact size 20 16 12 insert arrangements front face of pin insert or rear face of socket insert illustrated C Insert Arrangement C A B F E H F R G E B B A C B C J C D F B D A H A G A A B *12-08 E 8-33 8-98 10-06 12-03 Service Rating I I I II I I Number of Contacts 3 3 6 3 8 10 Contact Size 20 20 20 16 20 A A A D E B C G J F *14-04 14-05 B K L C D F E E Insert Arrangement J M C D G C D A H B H B * 14-09 14-12 12-10 20 A L K R M J P H G N B D C F E 14-15 Service Rating I II Number of Contacts 4 5 5 4 8 4 14 1 Contact Size 12 16 20 12 20 16 20 16 K J A L M N T U P B H S G R F Insert Arrangement Service Rating Number of Contacts Contact Size E C D *14-18 I C D M A B L N P C K U V R J T S D H G F I P A N G B H F C E D E *16-08 14-19 R Y M L X K J Z W V H G I A B S C T U D E F *16-23 16-26 I I II 18 19 8 22 1 26 16 20 16 20 20 20 I R A B P T C N S b U a M V D g Z L Y W E K X F J H G I *Available on request. Please contact factory. 5 AMPHENOL Series II Contact Legend Miniature Cylindrical MIL-C-26482, Series 2 Symbol Contact size 20 16 12 insert arrangements front face of pin insert or rear face of socket insert illustrated A H B H F C G N C L F D g Z Y L E Insert Arrangement b a K f W E P F N X i h a M G Z L K J *18-08 * 18-11 * 18-30 Service Rating I II I Number of Contacts 8 11 29 1 32 12 16 20 16 20 Contact Size B W K C R H D G Insert Arrangement Y P S T R D a d e L J K M * 20-24 * 20-39 II I I Number of Contacts 16 24 37 2 41 Contact Size 16 20 20 16 20 M B M L D Insert Arrangement H S G F *22-12 Service Rating D R T J E * 22-19 E R S D T U J H G * 22-21 I II Number of Contacts 12 19 21 Contact Size 12 12 16 AMPHENOL 6 E F I *Available on request. Please contact factory. C X V K B P L C A N W V G F P U K C I M B K H 20-41 A N L H d L N K G c e * 20-16 A b p q P F n f R E a Service Rating J D Z m T r H J M s g S Y k h F G c f i T C X j U E b N E F V Z p B W C n q g P D A B Y h R X F Y G H 18-32 m r i C Z G F T C D W E I k S U H E B N X a V J P j U M N J V A L M S A X W A L K B V f d j c b H J A U e R D U V e T S C T c M D E B d P B K A S R A J G Series II Contact Legend Miniature Cylindrical MIL-C-26482, Series 2 Symbol Contact size 20 16 12 insert arrangements front face of pin insert or rear face of socket insert illustrated N M b h a L g Z X C T Insert Arrangement N G D E F d G e f M * 22-32 Service Rating q g R P F H c p r h S b n K L V H J * 22-41 I A n S C s t U B C W p m X q AA Y k z r BB D Z CC GG R j y HH s E P a DD FF i x EE N t F w b h u g v f d c G M e H L K J T B a m k i T E J j D V W Z U U e W V A Y X B d J f Y K A R c S P 22-55 I I Number of Contacts 32 27 14 55 Contact Size 20 20 16 20 A X B W V Y h g K F b S f R e c d M Insert Arrangement H K L R D S G E * 24-19 I N Q C g e R c W S d T V D E U F F G 24-31 II I Number of Contacts 26 6 19 31 Contact Size 20 12 12 16 Y P b f X H * 22-95 Service Rating K J T J J N V U B a Y C G H P P Z E a j N L A L B M D Z U T M A C Z a b A u v c B C d t GG HH w D s FF x e JJ NN V E r EE f PP MM KK y U g F q z DD T G h CC AA p BB S H i n R J m k j P K N M L X W Insert Arrangement 24-61 Service Rating I Number of Contacts 61 Contact Size 20 *Available on request. Please contact factory. 7 AMPHENOL Series II Miniature Cylindrical MIL-C-26482, Series 2 MS3470 wall mounting receptacle with narrow flange Receptacle Shell, Wall Mount with Narrow Flange, Bayonet Coupling Military No. MS3470 A Max . Typ. 35.7 mm 1.405 Max Shell 8 Thru 18 37.2 mm 1.465 Max Shell 20,22,& 24 B. Typ. Master Keyway H Accessory Thread 3 Teeth Equally Spaced 0 120 Apart + D Dia. Max Grommet C Dia. 4.8 mm. 190 3.3 mm. 130 Blue Color Bands T Dia. Mounting Holes Typ. 4- Places E F Grommet Extension .290 Min. Full Thread 7.3 mm To complete order number see ordering information, page 14. Inches Shell Size A Max. B .005 C Dia. .003 D Dia. Max. E F .016 H Accessory Thread Class 2A T .005 8 .828 .594 .471 .305 .462/.431 .062 .5000-20 UNF .120 10 .954 .719 .588 .405 .462/.431 .062 .6250-24 UNEF .120 12 1.047 .812 .748 .531 .462/.431 .062 .7500-20 UNEF .120 14 1.141 .906 .873 .665 .462/.431 .062 .8750-20 UNEF .120 16 1.234 .969 .998 .790 .462/.431 .062 1.0000-20 UNEF .120 18 1.328 1.062 1.123 .869 .462/.431 .062 1.0625-18 UNEF .120 20 1.453 1.156 1.248 .994 .587/.556 0.94 1.1875-18 UNEF .120 22 1.578 1.250 1.373 1.119 .587/.556 0.94 1.3125-18 UNEF .120 24 1.703 1.375 1.498 1.244 .620/.589 0.94 1.4375-18 UNEF .147 A Max. B .005 C Dia. .003 D Dia. Max. E F .016 H Accessory Thread Class 2A T .005 Millimeters Shell Size 8 21.0 15.0 12.0 07.7 11.7/10.9 1.6 .5000-20 UNF 3.0 10 24.2 18.3 15.0 10.3 11.7/10.9 1.6 .6250-24 UNEF 3.0 12 26.6 20.6 19.0 13.5 11.7/10.9 1.6 .7500-20 UNEF 3.0 14 29.0 23.0 22.1 16.9 11.7/10.9 1.6 .8750-20 UNEF 3.0 16 31.3 24.6 25.3 20.1 11.7/10.9 1.6 1.0000-20 UNEF 3.0 18 33.7 27.0 28.5 22.1 11.7/10.9 1.6 1.0625-18 UNEF 3.0 1.1875-18 UNEF 3.0 20 37.0 29.4 31.5 25.2 14.9/14.1 2.4 22 40.0 31.7 34.9 28.4 14.9/14.1 2.4 1.3125-18 UNEF 3.0 24 43.2 31.6 15.7/14.9 2.4 1.4375-18 UNEF 3.7 AMPHENOL 35.0 38.0 8 Series II Miniature Cylindrical MIL-C-26482, Series 2 MS3472 wall mounting receptacle with wide flange Receptacle Shell, Wall Mount with Wide Flange, Bayonet Coupling Military No. Ms3472 A Max . Typ. 35.7 mm 1.405 Max Shell 8 Thru 18 37.2 mm 1.465 Max Shell 20,22,& 24 B. Typ. Master Keyway H Accessory Thread 3 Teeth Equally Spaced 0 120 Apart + .150 Dia. Mounting Holes Typ. 4- Places C Dia. D Dia. Max Grommet Blue Color Bands 4.8 mm. .190 3.3 mm. .130 E Grommet Extension .290 Min. Full Thread 7.3 mm F To complete order number see ordering information, page 14. Shell Size A Max. B .005 C Dia. .003 D Dia. Max. E F .016 H Thread Class 2A 8 1.065 .734 .471 .305 .493/.462 .062 .5000-20 UNF 10 1.141 .812 .588 .405 .493/.462 .062 .6250-24 UNEF 12 1.266 .938 .748 .531 .493/.462 .062 .7500-20 UNEF 14 1.360 1.031 .873 .665 .493/.462 .062 .8750-20 UNEF 16 1.453 1.125 .998 .790 .493/.462 .062 1.0000-20 UNEF 18 1.532 1.203 1.123 .869 .493/.462 .062 1.0625-18 UNEF 20 1.688 1.297 1.248 .994 .587/.556 0.94 1.1875-18 UNEF 22 1.766 1.375 1.373 1.119 .587/.556 0.94 1.3125-18 UNEF 24 1.891 1.500 1.498 1.244 .620/.589 0.94 1.4375-18 UNEF D Dia. Max. E F .016 Millimeters H Thread Class 2A Shell Size A Max. B .005 C Dia. .003 8 27.1 18.6 11.9 7.7 11.7/10.9 1.5 .50000-20 UNF 10 29.0 20.6 14.9 10.3 11.7/10.9 1.5 .6250-24 UNEF 12 32.1 23.8 19.0 13.5 11.7/10.9 1.5 .7500-20 UNEF 14 34.5 26.1 22.1 16.9 11.7/10.9 1.5 .8750-20 UNEF 16 36.9 28.6 25.3 20.0 11.7/10.9 1.5 1.0000-20 UNEF 18 38.9 30.5 28.5 22.0 11.7/10.9 1.5 1.0625-18 UNEF 20 42.9 32.9 31.7 25.3 14.9/14.1 2.3 1.1875-18 UNEF 22 44.8 34.9 34.8 28.4 14.9/14.1 2.3 1.3125-18 UNEF 24 48.0 38.1 38.0 31.6 15.7/14.9 2.3 1.4375-18 UNEF 9 AMPHENOL Series II Miniature Cylindrical MIL-C-26482, Series 2 MS3471 cable connecting receptacle Receptacle Shell, Cable Connecting, Bayonet Coupling Military No. MS3471 35.7 mm 1.405 Max. Shell 8 Thru 18 37.2 mm 1.465 Max. Shell 20,22,& 24 A Max . Typ. Master Keyway E 7.3 Mm .290 Min. Full Thread F 3 Teeth Equally Spaced 1200 Apart + D Dia. Max Grommet C Dia. 4.8 mm .190 Grommet Extension .130 3.3 mm B Dia. Blue Colour Bands H Accessory Thread To complete order number see ordering information, page 14. Shell Size 8 A Max. B Dia. .020 C Dia. .003 D Dia. Max. E F .016 .828 .938 .471 .305 .462/.431 .062 H Thread Class 2A .5000-20 UNF 10 .954 1.062 .588 .405 .462/.431 .062 .6250-24 UNEF 12 1.04 7 1.156 .748 .531 .462/.431 .062 .7500-20 UNEF 14 1.141 1.250 .873 .665 .462/.431 .062 .8750-20 UNEF 16 1.234 1.344 .998 .790 .462/.431 .062 1.0000-20 UNEF 18 1.328 1.438 1.123 .869 .462/.431 .062 1.0625-18 UNEF 20 1.453 1.562 1.248 .994 .587/.556 0.94 1.1875-18 UNEF 22 1.578 1.688 1.373 1.119 .587/.556 0.94 1.3125-18 UNEF 24 1.703 1.812 1.498 1.244 .620/.589 0.94 1.4375-18 UNEF Millimeters. Shell Size A Max. B Dia. .020 C Dia. .003 D Dia. Max. E F .016 H Thread Class 2A 8 21.0 23.8 12.0 7.7 11.7/10.91 1.6 .5000-20 UNF 10 24.2 27.0 14.9 10.2 11.7/10.9 1.6 .6250-24 UNEF 12 26.6 29.3 18.8 13.5 11.7/10.9 1.6 .7500-20 UNEF 14 29.0 31.7 22.1 16.9 11.7/10.9 1.6 .8750-20 UNEF 16 31.3 34.1 25.3 20.0 11.7/10.91 1.6 1.0000-20 UNEF 18 33.7 36.5 28.5 22.1 11.7/10.9 1.6 1.0625-18 UNEF 20 36.9 39.7 31.7 25.2 14.9/14.1 2.4 1.1875-18 UNEF 22 40.0 42.9 34.9 28.42 14.9/14.1 2.4 1.3125-18 UNEF 24 43.2 46.0 38.0 31.6 15.7/14.9 2.4 1.4375-18 UNEF AMPHENOL 10 Series II Miniature Cylindrical MIL-C-26482, Series 2 MS3474 jam nut receptacle Receptacle Shell, Jam Nut Mount, Bayonet Coupling Military No. MS3474 A Max . Typ. 35.7 mm 1.405 Max. Shell 8 Thru 18 37.2 mm 1.465 Max. Shell 20, 22 & 24 Master Keyway E F H Accessory Thread 3 Teeth Equally Spaced Spaced 1200 Apart + B D Dia. Max Grommet C Dia K Max. Typ. 4.8 mm .190 3.3mm .130 Blue Color Bands J Mounting Thread Lockwire Hole 3-Places Equally Spaces Grommet Extension 7.3 mm. .290 Min. Full Thread Blue Color Band To complete order number see ordering information , page 14. Shell Size A Max. B .005 C Dia. .003 D Dia. Max. E F H Accessory Thread Class 2A 8 .954 .525 .471 .305 .707/.658 .113/.086 .5000-20 UNF 10 1.078 .650 .588 .405 .707/.658 .113/.086 .6250-24 UNEF J Mounting Thread Class 2A .5625-24 UNEF .6875-24 UNEF K Max. .767 .892 12 1.266 .813 .748 .531 .707/.658 .113/.086 .7500-20 UNEF .8750-20 UNEF 1.079 14 1.391 .937 .873 .665 .707/.658 .113/.086 .8750-20 UNEF 1.0000-20 UNEF 1.205 16 1.516 1.061 .998 .790 .707/.658 .113/.086 1.0000-20 UNEF 1.1250-18 UNEF 1.329 18 1.641 1.186 1.123 .869 .707/.658 .113/.086 1.0625-18 UNEF 1.2500-18 UNEF 1.455 20 1.828 1.311 1.248 .994 .772/.721 .148/.096 1.1875-18 UNEF 1.3750-18 UNEF 1.579 22 1.954 1.436 1.373 1.119 .772/.721 .148/.096 1.3125-18 UNEF 1.5000-18 UNEF 1.705 24 2.078 1.561 1.498 1.244 .772/.721 .148/.096 1.4375-18 UNEF 1.6250-18 UNEF 1.829 E F Millimeters Shell Size A Max. B .005 C Dia. .003 D Dia. Max. 8 24.2 10 27.4 13.3 12.0 7.7 17.9/17.7 2.8/2.1 16.5 15.0 10.3 17.9/17.7 2.8/2.1 J Mounting Thread Class 2A K Max. .5000-20 UNF .5625-24 UNEF 19.5 .6250-24 UNEF .6875-24 UNEF 22.6 .8750-20 UNEF 27.4 H Accessory Thread Class 2A 12 32.1 20.6 19.0 13.4 17.9/17.7 2.8/2.1 .7500-20 UNEF 14 35.3 23.8 22.2 16.9 17.9/17.7 2.8/2.1 .8750-20 UNEF 1.0000-20 UNEF 30.6 1.1250-18 UNEF 33.7 16 38.5 27.0 25.3 20.0 17.9/17.7 2.8/2.1 1.0000-20 UNEF 18 41.7 30.1 28.5 22.1 17.9/17.7 2.8/2.1 1.0625-18 UNEF 1.2500-18 UNEF 37.0 20 46.4 33.3 31.7 25.2 19.6/18.3 3.7/2.4 1.1875-18 UNEF 1.3750-18 UNEF 40.1 22 49.6 36.5 34.9 28.4 19.6/18.3 3.7/2.4 1.3125-18 UNEF 1.5000-18 UNEF 43.3 24 52.7 39.6 38.0 31.6 19.6/18.3 3.7/2.4 1.4375-18 UNEF 1.6250-18 UNEF 46.4 11 AMPHENOL Series II Miniature Cylindrical MIL-C-26482, Series 2 MS3476 straight plug MS3475 straight plug with RFI grounding fingers Master Keyway 7.3 mm .290 Min. Full Thread H Accessory Thread 3 Teeth Equally Speed 1200 Apart A Dia. Max Over Knurl B Dia. Max Grommet 4.8 mm .190 Grommet Extension 3.3 mm .130 Blue Color Bands Plug Shell, Bayonet Coupling Military No. MS3476 Fully Coupled Indicators 8.1 mm .320 Min. 1.420 Max 36.0 mm 7.3 mm .290 Min. Full Thread H Accessory Thread Master Keyway A Dia. Max. Over Knurl 3 Teeth Equally Spaced 1200 Apart RFI Fingers B Dia. Max Grommet 4.8 mm .190 Grommet Extension 3.3 mm .130 Blue Color Band Fully Coupled Indicators 8.1 mm .320 Min. 1.420 Max 36.0 mm To complete order number see ordering information , page 14. Shell Size A Dia. Max. B Dia. Max . H Accessory Thread Class 2A 8 .782 .305 .5000-20 UNF 10 .926 .405 .6250-24 UNEF 12 1.043 .531 .7500-20 UNEF 14 1.183 .665 .8750-20 UNEF 16 1.305 .790 1.0000-20 UNEF 18 1.391 .869 1.0625-18 UNEF 20 1.531 .994 1.1875-18 UNEF 22 1.656 1.119 1.3125-18 UNEF 24 1.777 1.244 1.4375-18 UNEF Millimeters Shell Size AMPHENOL A Dia. Max. B Dia. Max . H Accessory Thread Class 2A 8 19.8 3.1 10 23.5 10.2 .6250-24 UNEF 12 26.5 13.5 .7500-20 UNEF 14 30.0 16.9 .8750-20 UNEF 16 33.1 20.0 1.0000-20 UNEF 18 35.3 22.0 1.0625-18 UNEF 20 38.9 25.2 1.1875-18 UNEF 22 42.0 28.4 1.3125-18 UNEF 24 45.1 31.6 1.4375-18 UNEF 12 .5000-20 UNF Plug Shell, RFI Grounding, Bayonet Coupling Military No. MS3475 Amphenol No. MB18 Series II Miniature Cylindrical MIL-C-26482, Series 2 contact information, sealing plugs, crimping and insertion/removal tools MIL-C-26482, SERIES 2 CRIMP CONTACTS Socket Contacts Wire Range Contact Size AWG mm2 20 24-20 16 12 Pin Contacts Military Part Number Military Part Number 0.2-0.6 M39029/5-115 M39029/4-110 20-16 0.5-1.4 M39029/5-116 M39029/4-111 14-12 2-3 M39029/5-118 M39029/4-113 CONTACT CURRENT RATING AND RETENTION SEALING PLUGS Contact Retention Contact Size* Sealing Plugs Axial Load DC Test Amperage lb. N 20 7.5 15 66.7 16 13.0 25 111.2 12 23.0 30 133.4 Contact Size Military Part Number 20 MS27488-20 16 MS27488-16 12 MS27488-12 *Operating individual circuits to maintain heat rise within operating temperature requirements. CRIMPING TOOLS Wire Range Contact Size AWG mm2 20 24-20 16 12 Finished Wire Dia. Range Crimping Tool Part Number Turret or Positioner Part Number Inch mm 0.2-0.6 .040-.083 1.02-2.11 M22520/1-01 or M22520/2-01 M22520/1-02 or M22520/2-02 20-16 0.5-1.4 .053-.103 1.34-2.62 M22520/1-01 M22520/1-02 14-12 2-3 .097-.158 2.46-4.01 M22520/1-01 M22520/1-02 INSERTION/REMOVAL TOOLS Contact Size Color Code Military Part Number 20 Red/White MB 1969/14-11 16 Blue/White MB 1969/14-03 12 Yellow/White MB1969/14-04 NOTE: Each connector is furnished with contacts. One spare for inserts requiring 1 to 20 of each contact, two spares for inserts with more than 26 contacts, and a minimum of one sealing plug up to 15% of the number of contacts. 13 AMPHENOL Series II MIL - C26482, Series 2 Ordering Information HOW TO ORDER BY MILITARY PART NUMBER MIL-C-26482 SERIES 2 CONNECTORS MS 3470 W 12 10 P W 1 2 3 4 5 6 7 1. Connector Type MS designates Military Standard 2. Connector Style 3470 wall mounting receptacle with narrow flange 3472 wall mounting receptacle with wide flange 3471 cable connecting receptacle 3474 jam nut receptacle 3476 straight plug 3475 straight plug with RFI grounding fingers 3. Service Class L aluminum shell, electroless nickel finish, fluid resistant insert A aluminum shell, black anodized finish, non-conductive fluid resistant insert W aluminum shell, olive drab cadmium plated, fluid resistant insert Note: For stainless steel shell, passivated, order by Amphenol proprietary Class G Class L inactive older classes E and R (Ref. MIl-C-26482) 4.,5. Shell size and insert arrangement - See chart on page 4 and pattern drawings that follow. 6. Contact Types P designates pin S designates socket A designates less pins B designates less sockets Note: Use A & B only when other than a full complement of power contacts is to be installed 7. Insert Rotation "W", "X", "Y", "Z", designates that insert is rotated in it's shell from normal position. No letter required for normal (no rotation) position. See page 4 for description of alternate positions. For ordering information on accessories, such as protection caps and backshell hardware, contact factory. AMPHENOL 14 Series II Notice : All information, including illustrations given herein is believed to be accurate at the time of printing. In lieu of design advances, Amphenol reserves the right to change specifications without notice. This publication MIL-C-26482,Series 2 REV 01/10 supercedes all existing Amphenol literature on Series 2 Connectors. Series II Notes : AMPHENOL 16 Bangalore Operations Pune Operations MARKETING HEAD QUARTERS Southern Region Northern and Eastern Region 105, Bhosari Industrial Area, Pune - 411 026. Tel.: 91- 020 - 30688303, 30688304 Fax : 91 - 020 - 30688321 Email : vbhavsar@amphenol-in.com sales@amphenol-in.com 4931, 11th Floor, High Point IV 45, Palace Road, Bangalore 560 001. Tel.: 91-80-22281392, 22281002 Fax : 91-80-22253859 Email : kmanoj@amphenol-in.com 1414, 14th Floor, Chiranjiv Tower, 43, Nehru Place, New Delhi - 110 019. Tel. : 91-11-26449177 Telefax : 91-11-26449176 Email : sunily@amphenol-in.com Export Western Region Central Region 105, Bhosari Industrial Area, Pune - 411 026, India. Tel.: 91- 20 - 30688305, 30688353 Fax : 91- 20 - 27129158 Email : svpatil@amphenol-in.com 105, Bhosari Industrial Area, Pune - 411 026. Tel.: 91- 20 - 27119735, 30688334 Fax: 91- 20 - 27120581, 27119735 Email : sunilp@amphenol-in.com 107, 1st Floor, `Am Sri Classic', Sarojinidevi Road, Secunderabad-500 003. 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