Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 01-006638-003 found under Key Machine by Western Sky Industries Inc. The National Stock Number assigned to this part is 5315012434654, and the Federal Supply Class is 5315 Nails Machine Keys And Pins. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 01-006638-003.