Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C4758PC8 found under Gasket by Singer Valve Inc. The National Stock Number assigned to this part is 5330007738247, 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 C4758PC8.