Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1U30689-01 found under Shaft Assy Rigid by Atk Launch Systems Inc. The National Stock Number assigned to this part is 1338006888353, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1U30689-01.