Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 10001321-16 found under Ring Retaining by Bae Systems Australia Limited. The National Stock Number assigned to this part is 5325121564642, 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 10001321-16.