The Amphenol BK4SRL Band Lock Adaptor for 38999 Series III, is our most popular back shell solution for screened cable termination, delivering reliable performance in demanding military and aerospace environments.

Designed for use with straight or right-angled heat shrink boots (or overmolding), the BK4 provides secure screen termination via a retention band and offers a potential commercial self-lock alternative to the Mil-Spec MS85049/88 (straight heat shrink boot) and MS85049/90 (right-angled heat shrink boot) range of backshells.

Manufactured in accordance with AS85049 / M85049 specifications for military and aerospace applications, the BK4SRL is available in a broad range of proprietary designs and finishes. Complete customisation of a backshell solution can also be provided to meet specific project requirements.