Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A3-30639-1-3927 found under Stud Plain by Hamilton C W F And Co Ltd. The National Stock Number assigned to this part is 5307014399136, and the Federal Supply Class is 5307 Studs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A3-30639-1-3927.