Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 55173 found under Top Assembly Truck Body Detachab by Gma Cover Corp. The National Stock Number assigned to this part is 2540011918549, and the Federal Supply Class is 2540 Vehicular Furniture And Accessories. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 55173.