Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LB-B1-1243 found under Cable Special Purpose Electrical by Barcel Cdt. The National Stock Number assigned to this part is 6145013557190, and the Federal Supply Class is 6145 Wire And Cable Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LB-B1-1243.