Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0631 405 028 found under Pin Straight Headless by Gse Management Co. The National Stock Number assigned to this part is 5315012236695, 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 0631 405 028.