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 2925-01-231-6312
NSN 6135-01-546-4588
NSN 5855-00-548-4742
NSN 5990-01-591-8797
NSN 4140-00-732-5444
NSN 6110-00-518-2998
NSN 5990-01-504-9265
NSN 5950-01-013-9382
NSN 5998-00-108-8461
NSN 5985-01-532-4767
NSN 5990-01-193-0487
NSN 5855-00-252-5743