Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BB26073 found under Collar Shaft by Diamond Reo Truck Co. The National Stock Number assigned to this part is 3040007085128, 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 BB26073.