Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3H1 120 found under Stud Plain by Man Diesel And Turbo Ltd. The National Stock Number assigned to this part is 5307014592365, 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 3H1 120.