Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1283-217 found under Retainer Packing by Searle Leather And Packing Co. The National Stock Number assigned to this part is 5330001861311, 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 1283-217.