Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 42312C346 found under Bushing Sleeve by Triumph Gear Systems Inc. The National Stock Number assigned to this part is 3120011694448, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 42312C346.