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 5975-01-188-5200
NSN 6150-01-492-6506
NSN 5990-01-626-2818
NSN 2925-00-876-1578
NSN 5960-01-189-5712
NSN 5996-01-132-2559
NSN 5965-01-478-9375
NSN 5998-00-410-0944
NSN 4140-01-522-4699
NSN 6135-00-235-1938
NSN 6240-01-017-5689
NSN 5975-01-057-6576