Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 40MP-E400 found under Gasket by Dixon Valve And Coupling Co. The National Stock Number assigned to this part is 5330016689929, 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 40MP-E400.