Pub/Form Title | SCREW-THREAD STANDARDS FOR FEDERAL SERVICE, 1957 PART II: PIPE THREADS, INCLUDING DRYSEAL PIPE THREADS; GAS CYLINDER VALVE OUTLET AND INLET THREADS; HOSE COUPLING, INCLUDING FIRE-HOSE COUPLING THREADS AND HOSE CONNECTION FOR WELDING AND CUTTING EQUIPMENT (NATIONAL BUREAU OF STANDARDS HANDBOOK H 28 (1957)) |