Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BS8727 found under Nut Swivel by Walworth Aloyco. The National Stock Number assigned to this part is 5310001401757, 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 BS8727.