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 6135-00-334-4500
NSN 5960-01-599-9821
NSN 5996-00-802-7822
NSN 7035-01-231-2450
NSN 2925-01-425-7087
NSN 4140-01-515-6179
NSN 5895-01-414-0057
NSN 6220-01-658-1035
NSN 5855-00-014-5008
NSN 7035-00-421-0468
NSN 6610-01-507-4356
NSN 5965-00-058-1766