Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R1-8171 PIECE 47 found under Gasket by Howden North America Inc. The National Stock Number assigned to this part is 5330012656368, 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 R1-8171 PIECE 47.