Straight Plug — MIL-DTL-38999 III, 55 × #20 Socket, Shell 23, Olive Drab

Specifications

Cross-Reference

Applications

• Aerospace and defence airframe / engine harnesses
• Avionics, flight-control and sensor interconnect
• Ground vehicles, radar and weapon systems
• Harsh-environment industrial and marine equipment

The D38999/26WH55SA is a MIL-DTL-38999 Series III straight plug (slash sheet /26) with a triple-start Tri-Start self-locking threaded coupling, scoop-proof shells and 360° EMI/RFI grounding. Shell size 23 (H) carries insert arrangement H-55 = 55 × #20 socket contacts; the W finish is olive-drab cadmium over aluminium for 500-hour salt spray. Key position A is an alternate insert rotation. Real DLA demand for this number: DIBBS SPE7M5-26-T-487X (NSN 5935-01-532-7097, quantity 110). Airoadcon builds it as the J599/26 equivalent (same QPL part number is shared by Amphenol, TE Deutsch and Souriau).