Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 42901 found under Bracket Small Arms by Navy United States Department Of. The National Stock Number assigned to this part is 2590016237522, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 42901.