MIL-DTL-38999 Series II connectors feature a bayonet coupling mechanism with lower profile design and rear-removable crimp contact retention system. These connectors were designed for military and commercial applications where the prime requirements are lower profile and lighter weight.
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MIL-DTL-38999 Series III is the newest cylindrical connector designed for highest performance capabilities used in both general purpose and severe environment applications.
These connectors feature an improved 'one-turn' coupling system, utilizing self-locking acme thread. Acme threads provide coupling durability, while thicker wall sections and greater coupling surface area improve strength and shock resistance. Blunting of the threads on both receptacle and plug coupling nut eliminates cross threading.
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The new RJ45 Environmental system incorporates a 38999 series III derived metal shell with full 360 degree EMC and mechanical protection and meets the requirements of high speed ethernet connections where reliability through environmental sealing and full mechanical protection are required.

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Protective Caps for MIL-DTL-38999 Series I
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