Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number STE-1770-0234 found under Pump Rotary by Steelmasters Of Columbus Inc. The National Stock Number assigned to this part is 4320010610771, 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 STE-1770-0234.