Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RX4S found under Rivet Blind by Magnum Power Products Llc. The National Stock Number assigned to this part is 5320015497636, and the Federal Supply Class is 5320 Rivets. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RX4S.