Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S972 found under Cylinder Assembly Actuating Line by S And S Truck Parts Inc. The National Stock Number assigned to this part is 3040009302551, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S972.