Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number G4SM-23 found under Display Case Mechanically Refrig by True Food Service Equipment. The National Stock Number assigned to this part is 4110015884436, and the Federal Supply Class is 4110 Refrigeration Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like G4SM-23.