Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1240C5 found under Adapter Bearing by Triumph Gear Systems Inc. The National Stock Number assigned to this part is 1680000088962, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1240C5.