Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BL7-3-1 found under Rivet Blind by Lisi Aerospace Canada Corp. The National Stock Number assigned to this part is 5320011445640, and the Federal Supply Class is 5320 Rivets. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BL7-3-1.