Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D-WK-492-A43 PIECE 4-11 found under Retainer Packing by Walz And Krenzer Inc. The National Stock Number assigned to this part is 5330012699259, 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 D-WK-492-A43 PIECE 4-11.