Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T8ASA004003BF00 found under Fastener Positive Lock by Marathonnorco Aerospace Inc. The National Stock Number assigned to this part is 5325004608575, 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 T8ASA004003BF00.