Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BM488 found under Stem Needle Valve by La Gary Co. The National Stock Number assigned to this part is 4820001796363, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BM488.