1、AMSC N/A FSC 5935 MIL-DTL-28731/31C 25 May 2012 SUPERSEDING MIL-C-28731/31B 4 June 1985 DETAIL SPECIFICATION SHEET CONNECTORS, ELECTRICAL, INSERT (INSULATOR), MALE RECTANGULAR, POLARIZED, CENTER SCREW LOCK FOR 117 REMOVABLE TYPE CONTACTS This specification is approved for use by all Departments and
2、Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-28731. FIGURE 1. Connector, male rectangular. INCH - POUNDS Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
3、om IHS-,-,-MIL-DTL-28731/31C 2 Inches .005 .050 .08 .100 .120 .128 .138 .155 .187 .195 .234 .439 .468 mm 0.13 1.27 2.0 2.54 3.05 3.25 3.51 3.94 4.75 4.95 5.94 11.15 11.89 Inches .532 .625 .694 .700 .870 .940 1.140 1.800 2.090 2.230 2.592 2.950 3.372 mm 13.51 15.88 17.62 17.78 22.10 23.11 28.96 45.72
4、 53.09 56.64 65.84 74.93 85.65 FIGURE 1. Connector, male rectangular Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28731/31C 3 Configuration A Contact hole detail Inches .005 .018 .040 .052 .080 .082 .185 .240 .425 mm 0.13 0.46 1
5、.02 1.32 2.03 2.08 4.70 6.10 10.80 FIGURE 1. Connector, male rectangular Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28731/31C 4 Configuration B Connector polarization guide layout FIGURE 1. Connector, male rectangular Continue
6、d. POLARIZING POSITION CHANGE Keying position on both polarizing pins can be rotated to desired position by loosening spanner nut (counter- clockwise), resetting socket in one of six positions then retightening spanner nut (clockwise). NOTE: Over tightening of spanner nut can fracture connector. Spa
7、nner keying wrench shown. POLARIZING KEY MATING CODE R (FEMALE) Position 4 5 6 1 2 3 P (MALE) Position 1 2 3 4 5 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28731/31C 5 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given
8、 for information only. 3. Tolerances between any two contact centers shall be .004 (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: M28731/32-0001 mate wit
9、h M28731/31-0003 and M28731/31-0005 M28731/32-0002 mate with M28731/31-0004 and M28731/31-0006 M28731/32-0003 and M28731/32-0005 mate with M28731/31-0001 M28731/32-0004 and M28731/32-0006 mate with M28731/31-0002 7. Polarization information: Polarization sockets are provided for indexing to preclude
10、 intermixing of adjacent connectors. By using a standard type spanner wrench, polarization sockets 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 configurat
11、ion A (see marking, note 13d). For direct government acquisition a tool is supplied in the unit package for polarization socket adjustment. 8. Contact and terminal designation: Contacts and terminals shall be designated on the insulator using letters in the location shown on figure 1. 9. Tolerance s
12、hall be .010 (0.25 mm) unless otherwise specified. 10. For direct government acquisition crimp contacts M28731/35-0001 (see table I) are furnished in a plastic bag in each unit package (see marking, note 13a). 11. For direct government acquisition wrappost contacts are M28731/36-0001 (see table I) a
13、nd are factory installed in a connector body (see marking, note 13a). 12. Marking: a. Connectors supplied directly to the government shall be marked with the military Part or Identifying Number (PIN) (see table I). Example: M28731/30-0001. b. Connectors supplied with contacts to government end users
14、 shall be marked with the military PIN (see table I). Example: M28731/30-0001. c. Connectors supplied without contacts to government end users shall be marked as follows: Example: M28731/30E (screw or socket type from table I). The user shall complete the remaining portion of the military PIN as sho
15、wn in table I based upon contact type he assembles. Example: M28731/30E-0004. d. Polarization position marking is not required unless otherwise specified. When required polarization marking shall be in accordance with the connector polarization guide (see configuration B). The marking shall appear f
16、ollowing the PIN. 13. Applicable contact insertion and removal tools: Insertion - MIL-I-81969/5-01 Removal - MIL-I-81969/4-02 14. Rectangular shield: Shall conform to MIL-DTL-28731/19, PIN M28731/19-0003 through M28731/19-0006 and -0015, -0016 for type A and B hardware. 15. Recommended hardware (not
17、 furnished) for panel mounting. (4) .112-40-UNC-2A (length to suit) bolt with No. 4 washer and mating nut. FIGURE 1. Connector, male rectangular Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28731/31C 6 REQUIREMENTS: Dimensions a
18、nd configuration: See figure 1. Mating and unmating forces (torque): 120 inch-ounces, maximum. Dielectric withstanding voltage: 1,000 volts rms (sea level). Mechanical shock (specified pulse): Applicable. Contact retention: 6 pounds. Contact separation force: 1 ounce, minimum. Contact current rating
19、: 5 amperes, 22 AWG wire. PIN: See table I. TABLE I. PIN information. Military PIN Actuating hardware Polarizing socket position Contact type Left side Right side M28731/31-0001 M28731/31-0002 M28731/31-0003 M28731/31-0004 M28731/31-0005 M28731/31-0006 Jackscrew Type G Jack socket Type D Fixed socke
20、t Type F Fixed screw Type E Fixed socket Type F Fixed screw Type E 4 4 4 4 4 4 4 4 4 4 4 4 Crimp, MIL-DTL-28731/35 Crimp, MIL-DTL-28731/35 Crimp, MIL-DTL-28731/35 Crimp, MIL-DTL-28731/35 Wrappost, MIL-DTL-28731/36 Wrappost, MIL-DTL-28731/36 Changes from previous issue. Marginal notations are not use
21、d in this revision to identify changes with respect to the previous issue, due to the extent of the changes. Referenced documents. In addition to MIL-DTL-28731, this document references the following: MIL-DTL-28731/19 MIL DTL-28731/35 MIL-DTL-28731/36 Provided by IHSNot for ResaleNo reproduction or
22、networking permitted without license from IHS-,-,-MIL-DTL-28731/31C 7 CONCLUDING MATERIAL Custodians: Preparing activity: Army CR DLA - CC Navy EC Air Force 85 (Project 5935-2012-067) DLA - CC Review activities: Army AR, AT, AV, CR4, MI Navy AS, MC, OS Air Force 19, 99 NOTE: The activities listed ab
23、ove were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
