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 6320-00-004-9158
NSN 5996-01-157-7079
NSN 6110-00-170-6520
NSN 5920-00-140-8912
NSN 6105-00-156-9084
NSN 4140-00-381-4563
NSN 6220-01-259-9816
NSN 5945-00-202-5133
NSN 5910-00-905-4096
NSN 5998-00-517-7312
NSN 5990-00-779-8268
NSN 6105-01-493-6478