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 6220-01-629-2636
NSN 5920-01-210-2300
NSN 5990-01-100-7231
NSN 6320-01-118-0553
NSN 5895-00-149-0707
NSN 5920-01-242-9208
NSN 5905-00-073-2240
NSN 6320-01-185-3857
NSN 5960-00-355-4017
NSN 6650-00-976-2507
NSN 6150-00-443-0099
NSN 4140-01-342-7929