Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AA37-09VM found under Disk Valve by Master Pneumatic Detroit Inc. The National Stock Number assigned to this part is 4820000979879, 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 AA37-09VM.