Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SP2 250 5.0 found under Pump Rotary by Sauer Sundstrand. The National Stock Number assigned to this part is 4320013530581, 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 SP2 250 5.0.