Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 137488-2003 found under Pin Lock by Duplan Industries. The National Stock Number assigned to this part is 5315015517182, 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 137488-2003.