ASC Anvil 1-1/4"x1/2" Galvanized Hex Bushing. It is made of malleable iron and has a hex shape. It has a MIP (male iron pipe) connection on one end and a FIP (female iron pipe) connection on the other end. Malleable galvanized iron pipe fittings. Larger size listing is for Male thread. Small size listing for Female thread. Ferrous Plugs, Bushings, and Locknuts, Fed. Spec. WW-P-471-B, ANSI B-16.14 (Dimensions), ANSI B-2.1 (Pipe Threads).