Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L16501P01 found under Ring Retaining by Danville Mfg. The National Stock Number assigned to this part is 5325010137753, 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 L16501P01.