Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AD124-57P23 found under Hook Hoist by Columbus Mckinnon Corporation. The National Stock Number assigned to this part is 4030014143072, and the Federal Supply Class is 4030 Fittings For Rope Cable And Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AD124-57P23.