Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B1 12361 found under Thumbscrew by Qinetiq Ltd. The National Stock Number assigned to this part is 5305999642712, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B1 12361.