M85049/60-1A12 is a shrink boot adapter backshell designed to provide strain relief, environmental protection, and EMI/RFI shielding at the termination area of circular connectors. Constructed from aluminum alloy with a straight orientation and finished in cadmium olive drab over electroless nickel (A.N.W.Z.), this backshell is engineered to meet MIL-DTL-38999 Series III & IV specifications. The product is part of Amphenol PCD's QPL connector accessories line, specifically designed for harsh and demanding environments where reliable cable management and connector protection are critical. Applications include aerospace, military, and industrial systems requiring robust environmental sealing and strain relief at connector interfaces.