Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A31-275 found under Nut Plain Blind Riv by Bf Goodrich Aerospace. The National Stock Number assigned to this part is 5310009523599, 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 A31-275.