Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 728 4985 063 found under Shaft by Aurora Pump. The National Stock Number assigned to this part is 3040011305023, 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 728 4985 063.