TE Connectivity DEUTSCH CTS-S20-20 Contacts are designed according to M39029 Mil-Spec specifications, and can be used in most Mil-Spec circular connectors, regardless of brand of connector. The DEUTSCH M39029 family includes crimp contacts for MIL-DTL-5015, MIL-DTL-26482, MIL-DTL-26482 Series II, MIL-DTL-81703 Series III, MIL-DTL-83723 Series III, MIL-DTL-38999, MIL-DTL-38999 Series II, MIL-DTL-38999 (Extended Life), MIL-DTL-38999 (Shielded), and MIL-T-81714 Series II. DEUTSCH M39029 are available in contact sizes 12, 12/16, 16, 16/20, and 20.