Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1630608 REVB PT 403 found under Stud Plain by A W Chesterton Company. The National Stock Number assigned to this part is 5307014817238, 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 1630608 REVB PT 403.