Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4000-37330 found under Sleeve Directional by Moog Inc. The National Stock Number assigned to this part is 4810014201935, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4000-37330.