M85049/56-20N is a straight tie wrap backshell designed for use with circular military connectors. This QPL connector accessory is constructed from aluminum alloy and features an electroless nickel (N) finish, providing corrosion resistance and durability. The backshell has an accessory shell size of 20, corresponding to a cable entry diameter of 1.250 inches (31.75 mm) maximum and a B dimension of 1.447 inches (36.8 mm) maximum. Designed to meet MIL-DTL specifications, this backshell provides strain relief and cable management at the connector termination area, making it suitable for military, aerospace, and other demanding applications requiring reliable cable support.