Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1132 SR-13 found under Washer Lock by Buffers Usa Inc. The National Stock Number assigned to this part is 5310014912121, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1132 SR-13.