Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F156553 REV D IT 16 found under Coupling Half Shaft by Oldenburg Group Incorporated. The National Stock Number assigned to this part is 3010016449076, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like F156553 REV D IT 16.