M85049/60-1W12 is a shrink boot adapter backshell designed for use with MIL-DTL-38999 series circular connectors. This QPL connector accessory is constructed from aluminum alloy with a cadmium olive drab over electroless nickel finish (W finish), providing corrosion resistance and environmental protection. The backshell features a straight configuration and is designed to accommodate heat shrink tubing for cable strain relief at the termination area. It is suitable for military, aerospace, and other demanding applications where reliable connector protection is required.