Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BACR12Y23 found under Ring Retaining by Mamco Mfg Co Inc. The National Stock Number assigned to this part is 5325006850173, 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 BACR12Y23.