An item designed to automatically relieve vacuum, by the intake of air, when the internal pressure falls below atmospheric pressure. See also valve, vacuum regulating.
Classification: Other taps, cocks, valves, etc., nesoi
NSN 6110-00-190-7523
NSN 5985-01-420-9776
NSN 5835-01-200-7153
NSN 5950-01-387-0478
NSN 5965-00-925-7314
NSN 2925-01-471-4912
NSN 5915-01-196-4787
NSN 5920-00-799-8359
NSN 6650-01-218-4742
NSN 5920-01-537-2284
NSN 6150-01-350-4072
NSN 5835-01-040-1960