Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 87243M3 found under Gasket by Ross Operating Valve Co. The National Stock Number assigned to this part is 5330001462816, 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 87243M3.