A-A-50458, COMMERCIAL ITEM DESCRIPTION, VALVES, RADIATOR, HEATING, PACKLESS BONNET, 25 PSIG (15 JAN 1982)

A-A-50458, COMMERCIAL ITEM DESCRIPTION, VALVES, RADIATOR, HEATING, PACKLESS BONNET, 25 PSIG (15 JAN 1982)., This Commercial Item Description covers the requirements for Valves, Radiator, Heating (packless bonnet). Metallic bellows seal for class 25 psig of the straight and angle globe pattern for steam service with female threaded inlet and male threaded outlet connection with union nut and male threaded tailpiece and hand wheel operator.