MIL-DTL-55302/31L
REQUIREMENTS:
Design and construction:
Dimensions and configuration: See figures 1 through 14.
Material:
Types I and II: Brass in accordance with Copper alloy C23000, C24000, C26000 and C26800 of
ASTM B36/B36M or C36000 of ASTM B16/B16M or C35300 of ASTM B121/B121M or C37700 of
ASTM B124/B124M.
Type III:
Key: Stainless steel in accordance with ASTM A582/A582M.
Rivet: Brass Copper alloy C23000, C24000, C26000 and C26800 of ASTM B36/B36M or C36000 of
ASTM B16/B16M or C35300 of ASTM B121/B121M or C37700 of ASTM B124/B124M.
Type IV:
Key: Glass filled polyester in accordance with ASTM D5927 type TPES013G30 or MIL-M-24519 type
GPT-30F.
Mounting/keying pin: Stainless steel in accordance with ASTM A582/A582M.
Finish:
Types I and II: Nickel in accordance with SAE-AMS2403.
Type III:
Key: Passivate in accordance SAE-AMS2700
Rivet: Nickel in accordance with SAE-AMS2403.
Type IV:
Mounting/keying pin: Passivate in accordance with SAE-AMS2700
Application:
Types I and II: This keying shall be used with connectors, as specified in MIL-DTL-55302/23,
MIL-DTL-55302/24, MIL-DTL-55302/25, MIL-DTL-55302/26 and MIL-DTL-55302/27.
Type III: This keying shall be used with connectors, M55302/27-91 through M55302/27-229; M55302/110-10
through M55302/110-35, M55302/117-01 through M55302/117-11; M55302/118-01 through M55302/118-11;
and M55302/119-01 through M55302/119-11, M55302/129-09 through M55302/129-18 and M55302/130-17
through M55302/130-46.
Type IV: This keying shall be used with M55302/129-01 through M55302/129-08 and M55302/130-01 through
M55302/130-16.
Installation:
Type I: For receptacle assemblies MIL-DTL-55302/24, MIL-DTL-55302/25 and MIL-DTL-55302/27, remove
contact and ream cavity to .062 inch diameter hole. For plug assemblies MIL-DTL-55302/23 or
MIL-DTL-55302/26, bond keying sleeve with 3M adhesive (EC-2216 or equivalent) in place over contact (see
figure 1).
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