Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 28255SA found under Coupling Pump Drive by Crane Pumps And Systems Inc. The National Stock Number assigned to this part is 4320002287421, and the Federal Supply Class is 4320 Power And Hand Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 28255SA.