MIL-DTL-28731/34C
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for general 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:
M28732/32-0001 mate with M28732/31-0003 and -0005.
M28732/32-0002 mate with M28732/31-0004 and -0006.
M28732/32-0003 and -0005 mate with M28732/31-0001.
M28732/32-0004 and -0006 mate with M28732/31-0002.
7. Polarization information:
Polarization sockets are provided for indexing to preclude 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 configuration 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 designations:
Contacts and terminal shall be designated on the insulator using letters in the location shown on
figure 1.
9. Tolerance shall be ± .010 (0.25 mm) unless otherwise specified.
10. The Government has a royalty-free license under the following listed patents for the benefit of
manufacturers of the item either for the Government or for use in equipment to be delivered to the
Government. Patent notice: Patent No. 3,675,185 owned by Elco Corporation.
11. For direct government acquisition crimp contacts M28731/35-0001 are furnished in a plastic bag in
each unit package (see marking, note 13a).
12. For direct government acquisition wrappost contacts are M28731/36-0001 and are factory installed in
connector body (see marking, note 13a).
13. Marking:
a. Connectors supplied directly to government shall be marked with the
military Part or Identifying Number (PIN) (see table I). Example M28731/34-0001.
b. Connectors supplied with contacts to government end users shall be marked with the
military PIN (see table I). Example M28731/34-0001.
c. Connectors supplied without contacts to government end users shall be marked as follows:
Example: M28731/34E (screw or socket type from table I). The user shall complete the
remaining portion of the military PIN as shown in table I based upon contact type he assembles.
Example: M28731/34E-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 following the PIN.
14. Applicable contact insertion and removal tools:
Insertion: See MIL-I-81969/5-01.
Removal: See MIL-I-81969/4-02.
15. Rectangular shield shall conform to MIL-DTL-28731/19, or MIL-DTL-28731/37 for applicable
connectors listed in table II. Shields M28731/19-0011, -0012, -0019, 0020 and M28731/31-0001
must be ordered separately.
16. Rubber grommet No. MS35489-9 in accordance with NASM3036 shown on type H connector is for
stabilizing actuating shaft in rectangular shield (M28731/37) (see table II).
FIGURE 1. Connector, female rectangular - Continued.
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