Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B1-77108PC17 found under Gasket by Bechtel Technical Services Inc. The National Stock Number assigned to this part is 5330007277010, 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 B1-77108PC17.