Straight Plug 55 × #22D — MIL-DTL-38999 Series III

Specifications

Cross-Brand Compatibility

Applications

D38999/26JE35JC is a Series III straight plug in shell 17 with the E35 insert: 55 size 22D contacts in a body that stays inside the shell-17 envelope, which is the layout used where a dense signal count has to pass through a connector that is still small enough for an avionics or vehicle harness.

Two letters in the number are easy to misread. The J after the slash sheet is the finish class — cadmium olive drab — not part of the insert code, so the insert is E35 (shell E, arrangement 35). The trailing JC is not a stock suffix either: J is the 1500-cycle high-durability socket contact style and C is the key position, which is why D38999/26JE35JC and D38999/26JE35PC are different parts even though every digit matches.

Series III plugs mate with the /20 wall-mount, /21 box-mount, /24 jam-nut and /25 RFI receptacles of the same shell and arrangement. DLA buys this configuration through its Active Devices Division — a 93-unit requirement was solicited against this exact part number.