Eaton meter socket, Comm, 320A, Over/under, 5x5 inch hub open, 3/8 inch stud, 4-jaw, 1-ph, 3/8 inch stud, Lever bypass, Gnd conn (#14-#2 Cu), Triplex, 3-wire, Ringless, 600 Vac
Milbank U4413-O-KK-BLG Meter Socket, Ringless, 200A, 600V, 1-Phase, 4-Jaw, UG, Horn Bypass, Plain Top, Surface-Mount, NEMA 3R | Graybar Store