Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number J42C0173-1 found under Gasket by Mcdonnell Douglas. The National Stock Number assigned to this part is 5330013523356, 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 J42C0173-1.