Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 422-001 found under Coupling Oil Pump by Turbodyne. The National Stock Number assigned to this part is 3040011502250, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 422-001.