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 6135-01-567-0739
NSN 5998-01-417-5970
NSN 5930-01-563-0284
NSN 5925-01-237-5755
NSN 6320-00-115-0883
NSN 6220-01-288-8582
NSN 5935-00-639-1382
NSN 6135-01-260-7180
NSN 6240-01-421-4025
NSN 6650-01-591-3342
NSN 5930-00-734-4489
NSN 4140-01-063-7192