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 6150-01-646-3435
NSN 4140-00-981-8580
NSN 5990-01-527-4868
NSN 5965-01-411-4767
NSN 5935-01-634-0668
NSN 5960-00-960-6805
NSN 6610-01-004-5856
NSN 5835-00-280-8494
NSN 5999-01-362-4033
NSN 6650-01-338-3823
NSN 6145-00-144-0918
NSN 6650-01-371-5886