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 6645-01-436-9702
NSN 4140-01-623-2795
NSN 5920-01-528-6293
NSN 4140-01-611-4667
NSN 5990-01-548-3711
NSN 6240-00-984-6257
NSN 5990-01-089-2652
NSN 5999-01-579-4478
NSN 5965-01-243-3307
NSN 5920-01-462-3181
NSN 6685-01-100-3012
NSN 5960-00-483-0161