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 5835-01-573-8449
NSN 5975-01-220-9359
NSN 5925-01-634-0664
NSN 5960-00-450-6353
NSN 5960-01-196-3344
NSN 6220-01-167-1805
NSN 5915-00-558-4413
NSN 5930-01-479-2235
NSN 6320-01-618-7800
NSN 6240-01-577-0267
NSN 5975-00-028-0122
NSN 5990-01-200-7460