Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 959 51 81 974 found under Packing Preformed by Pilatus Aircraft Ltd. The National Stock Number assigned to this part is 5330013397239, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 959 51 81 974.