Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PIN-1172 found under Pin by Dresser Rand Co. The National Stock Number assigned to this part is 5315011082982, 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 PIN-1172.