MIL-DTL-38999

MIL-DTL-38999 (formerly MIL-C-38999) describes several types of miniature, high density, bayonet or screw threaded circular connectors using removable crimp or fixed solder contacts. Able to withstand harsh environments, these will operate across a temperature range of -65⁰C to +200⁰C.

According to MIL-DTL-38999 the connectors are for use in the following types of application: Series I connectors are used where a quick disconnect coupling system is required for blind mating or other mating-difficult areas; Series II connectors are used where the connector is not subjected to high vibration or damp areas and where space or weight is at a premium due to their lower profile; Series III connectors are suitable for blind mating areas, and provide high-vibration characteristics at elevated temperature and are suitable for damp areas with the proper connector accessories; Series IV connectors are used where a quick disconnect coupling system is required for blind mating or other mating problem areas. Typical applications include aerospace and military systems.