Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 71C-3A16 found under Gearshaft Helical by Regal Beloit Corp Durst Div. The National Stock Number assigned to this part is 3040008726335, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 71C-3A16.