5 in, Overall Width 1 7/16 in, Weight 0.29 lb, Steel, Finish Zinc Plated, Hazardous Location Rating Class I, Divisions 1 and 2, Groups A, B, C, D, Class II, Divisions 1 and 2, Groups E, F, G, Class III, Divisions 1 and 2, UNF, Conduit Fitting Type Union, Fitting Type Union.