Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C00-1023 POS21 found under Ring Retaining by Ulstein Danmark A S. The National Stock Number assigned to this part is 5325222693065, 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 C00-1023 POS21.