Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R3318 found under Pin Designation by Chicago Rivet And Machine Co. The National Stock Number assigned to this part is 5315000852316, and the Federal Supply Class is 5315 Nails Machine Keys And Pins. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R3318.