Previously known as MIL-C-38999, MIL-DTL-38999 connectors come in four series: Series I, Series II, Series III, and Series IV. They are environmentally resistant connectors that use removable crimp contacts and have an operating range of -65 to +200℃.
D38999s are popular and widely used subminiature circular connectors for military and aerospace applications. With three coupling methods, nine shell sizes, and a wide variety of contact arrangements, our MIL-DTL-39020 connectors help give you the range of choices you need.
D38999 connectors are available in 9 shell sizes.
Six distinct keying positions are available for each shell size in the D38999 series of connectors: N, A, B, C, D, and E. A plug will only mate with a receptacle with the same keying code. Having 6 different keying positions allows the use of up to six D38999/26FJ61P plugs in the same space without the possibility of mating a plug with the incorrect receptacle.
The 39020 specification defines families of shells that intermate to protect from vibration, shock, and moisture. Inside the connectors are inserts that can be configured for various contact arrangements.