1、I I 1 1. I I I I l :i MIL-C-28731/11E 4 JUNE 1985 SUPERSEDING 25 May 1984 MIL-C-28731/11D MILITARY SPECIFICATION SHEET CONNECTOR, ELECTRICAL, INSERT (INSULATOR), MALE RECTANGULAR, POLARIZED, CENTER SCREW LOCK, FOR 38 REMOVABLE CONTACTS This specificatio-n is approved for use by all Depart- ments and
2、 Agencies of the Department of Defense. The complete requirements for acquiring the connectors described herein shall consist of this specification and the latest issue of MIL-C-28731. INCHES MM .O43 1.09 .O44 1.12 .075 1.91 .090 2.29 .110 2.79 .125 3.18 ,130 3.30 .140 3.56 .150 3.81 .187 4.75 .234
3、5.95 .265 6.73 .400 10.16 .412 10.46 .468 11.89 .681 17.30 .798 20.27 .844 21.44 .875 22.23 1.015 25.78 1.190 1.380 FIXED SPt(E1 1.688 .125-40 UNC-PB DOUBLE LEAD 2.000 TYPE F .138-32 UNC-PA I FIGURE 1. Connector, male rectangular. denotes changes 1 of 6 THIS DOCUMENT CONTAINS ( PAGES .- 30.23 35.05
4、42.88 50.80 65.43 80.95 - FSC 5935 Licensed by Information Handling Services.I10 DIA PIN KEYING SLUG POS ITION (I) SHOWN (TYP) .O90 DIA PIN KEYING SLUG POSITION (I) SHOWN SPANNER NUT (21 POLARIZING POSITION CHANGE Keying position on both polarizing pins can be rotated to desired position by loosenin
5、g spanner nut (counter-clockwise), resetting pin in one of six positions then retightening spanner nut (clockwise). NOTE: Overtightening of spanner nut can fracture connector. Spanner keying wrench shown below. INCHES .O3 .O60 CON FIGURATION .O70 1.37 DIMENSIONS REF. .140 I ONLY .250 OPTION AL .110
6、.I40 .O3 THK. ( S.A.E. 1090 STEEL) U1 I I SPANN ER W R EN CH Configuration A - Connector polarization guide (layout) 1.00 1.37 & 0.76 1.52 2.29 2.79 3.56 6.35 25.4 34.7 FIGURE 1. Connector, male rectangular - Continued. 2 Licensed by Information Handling Services, UIL-C-28731/3lE 57 m 7777706 003228
7、3 3 m MI L-C-28731/ 11E .O40 2 PL INCHES MM .O40 1.02 .O78 1.98 .135 3.43 .730 18.54 .790 20.01 1.380 35.05 FIGURE 1. Connector, male rectangular - Continued. 3 Licensed by Information Handling Servicesf INCHES Mf4 .O05 0.13 .O28 0.71 .O60 1.52 .O62 1.57 .O70 1.70 ,128 3.25 .133 3.38 ,160 4.06 ,273
8、6.93 -495 12.57 v SECTION C-C Configuration B - Contact hole detail FIGURE 1. Connector, male rectangular - Continued. Licensed by Information Handling ServicesMIL-C-28731/1lE 59 W 9999906 0032283 5 = 1 NOTES : 1. Dimensions are in inches. . 2. Metric equivalents are given for general information on
9、ly. 3. Tolerances between any two contact centers shall be *.O04 (0.10 mm). 4. Flatness, squareness, and parallelism shall be within dimensional tolerances. 5. Contact hole details shall be in accordance with configuration B. 6. Mating connector information: M28731/11-0073 and -0075 and mate with M2
10、8731/12-0074, -0076 and -0077. M28731/11-0074, -0076 and -0077 mate with.M28731/12-0013. and -0075. M28731/11-0078, and -0079 and -0080 mate with M28731/12-0078 and -0079. Polarization pins are provided for indexing to preclude intermixing of adjacent connectors. By using a standard type spanner wre
11、nch, polarization pins can be rotated to desired position. For parts supplied directly to the government, polarization will be in the 1-1 position. For other polarization positions see connector polarization guide configuration A (see marking, note 13d). For direct government acquisition a tool is s
12、upplied in the unit package for polarization socket adjustment. 8. Contact and terminal designations: Contacts and terminals shall be designated on the insulator using letters in the location shown on figure 1. 9. Tolerance shall be *.O10 (0.25 mm) unless otherwise specified. Patent No. 3,248,686 ow
13、ned by Elco Corporation. The government has a royalty-free license under the above patent for the benefit of manufacturers of items called for in this specification, either for the government or for use in equipment to be delivered to the government. 11. For direct government acquisition crimp conta
14、cts M28731/20-0001 are furnished in a plastic bag in each unit package (see marking, note 13a). 12. For direct government acquisition solder hole and wrappost contacts M28731/25-0001 and /26-O001 are factory installed in connector body (see 13. Marking: a. Connectors supplied directly to the governm
15、ent shall be marked with the military part number (see table I). Example: M28731/11-0074. b. Connectors supplied with contacts to government end users shall be marked with the military part number (see table I). Example: M28731/11-0074. c. Connectors supplied without contacts to government end users
16、 shall be marked as follows: Example: M28731/11F (screw or socket type from table I). The user shall complete the remaining portion of the military part number as shown in table I based upon contact type he assembles. Example: When required polarization marking shall be in accordance with the connec
17、tor polarization guide (see configuration A). The marking shall appear following the part number. 7. Polarization information: 10. Patent notice: . marking, nnte 13a). M28731/11F-0074. d. Polarization position marking is not required unless otherwise specified. 14. Applicable contact insertion and r
18、emoval tools: Insertion . MIL-I-81969/13-01 Removal MIL-I-81969/11-01 connector, it shal 1 be ordered separately. and -0016 must be ordered separately. (length to suit) bolt with No. 4 washer and mating nut., 15. When double wire crimp contact MIL-C-28731/23 is required for use with the -16. Rectang
19、ular shields shall conform to MIL-C-28731/19-0003 through -0006, -0015 17. Recommended hardware (not furnished) for panel mounting: (4) .112-40-UNC-2A FIGURE 1. Connector, male rectangular - Continued. Licensed by Information Handling ServicesREQUIREMENTS: I Dimensions and configuration: See Mati ng
20、 and unmati ng forces (torque figure 1. : 70 inch-ounces, maximum. Dielectric withstanding voltage: 1,250 V rms, 60 Hz, minimum. Mechanical shock: High impact shock applicable. Part number: I IMi 1 i tary part I number I TI- lM28731/11-0073 lM28731/11-0074 I l IM28731/11-0075 I I I M 2 87 3 1 / 1 1
21、-0 O 7 6 I I IM28731/11-0077 I l lM28731/11-0078 I See table I. TABLE I. Part number information. I Actuating IPolarizin hardware Tmmem l I -I- 7- I Jackscrew I 1 Fixed socket I 1 Jackscrew I 1 Fixed socket I 1 Fixed socket I 1 I I Type c Type F I I 1 I Type c Type F I I I I Type F Fixed screw I 1 T
22、ype E I I I I lM28731/11-00791 Fi xed screw I 1 I Type E I I I I I M28731/11-0080Fixed screw i 1 I I Type E I 1 1 I I I 1 I I I 1 I I I 1 I I I 1 l I I 1 I I I 1 I I I 1 I 1 -1_-1_- I - I I 77 See figure 1, note ir 7/ See figure i, note i2 NOTE : 7 Contact type I I I - I I I I I Solder hole MIL-C-28
23、731/25 2/ I I I Solder hole MIL-C-28731/25 2/ I I I Wrappost MIL-C-28731/26 21 I I I I I Solder hole MIL-C-28731/25 2/ I -1 I Wrappost MIL-C-28731/26 2/ I I I Crimp MIL-C-28731/20 i/ I Crimp MIL-C-28731/20 i/ I Crimp MIL-C-28731/20 i/ I I -1_- M28731/11-0073 supersedes M28731/11-0001 thru M28731/11-
24、0036. M28731/11-0074 supersedes M28731/11-0037 thru M28731/11-0072. Custodians: Army - CR Navy - EC Air Force - 85 Review activities: Army - AR, AT, MI Navy - AS Air Force - 11, 17, 99 DLA - ES User activities: Army - AL, AV, ME Navy - MC, OS Air Force - 19 Agent: DLA - ES Preparing activity: ( Project 5935-3488-8) Navy - EC Licensed by Information Handling Services
