Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BL703923-5ISSUE1 found under Bearing Sleeve by At And T Corp. The National Stock Number assigned to this part is 3120001597146, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BL703923-5ISSUE1.