Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 123BM50001-11 found under Hinge Access Door by Capy Machine Shop Inc. The National Stock Number assigned to this part is 5340000014657, 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 123BM50001-11.