CLASS F,K,S & W D38999/20 D38999/24 D38999/26 | The MIL-DTL-38999 Series III connector has a triple start threaded coupling mechanism that offers greater vibration protection. In addition, the Series III has metric accessory threads for greater strength and support of backshells. These environmental resistant connectors are 100% "scoop proof". Now available in stainless steel with firewall inserts.  |