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 6650-01-139-5238
NSN 5999-01-486-9395
NSN 6220-01-652-7072
NSN 6320-01-536-3077
NSN 5835-01-550-5094
NSN 5905-01-250-3631
NSN 6240-00-824-4678
NSN 5915-00-137-3006
NSN 6145-00-941-5018
NSN 5855-00-100-9003
NSN 6220-00-917-0881
NSN 5855-01-013-6864