Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6518389 found under Stud Turnlock Fastener by Allison Transmission Holdings Inc. The National Stock Number assigned to this part is 5325001714882, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6518389.