Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 175B3913P1 found under Gasket by Bechtel Technical Services Inc. The National Stock Number assigned to this part is 5330013846605, 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 175B3913P1.