Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SL4857BRB8BREEC8BRB found under Clamp Block by Bae Systems. The National Stock Number assigned to this part is 5340012030640, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SL4857BRB8BREEC8BRB.