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 7035-01-081-5795
NSN 6150-01-145-5156
NSN 6620-00-144-7201
NSN 2925-01-595-9720
NSN 6135-01-452-2421
NSN 5996-01-360-5635
NSN 5855-01-286-9928
NSN 6650-01-005-0714
NSN 5895-00-169-5062
NSN 6685-01-070-1821
NSN 5999-01-395-0062
NSN 6145-01-626-3400