Commercial electric thermostat 200-500F, 36" Capillary, 3/16" X 13-7/8" Nickel Bulb, direct acting (switch contacts open on temperature rise). factory Model S-52. The 5300 Series Standard Thermostat is a SPST, snap-acting control.Replaces G.E./HOBART XNC8X074, 54B107070P3, 342027P3