Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9HA552 found under Adapter Pump Unit by Oshkosh Corporation. The National Stock Number assigned to this part is 2540014911436, and the Federal Supply Class is 2540 Vehicular Furniture And Accessories. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 9HA552.