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 6110-00-408-5697
NSN 5925-00-182-7452
NSN 5920-01-378-5470
NSN 6240-00-948-6652
NSN 5905-00-148-8338
NSN 5920-00-152-4003
NSN 5930-01-327-3744
NSN 6650-01-011-9093
NSN 5915-01-408-4655
NSN 6145-01-338-1135
NSN 2925-00-169-3775
NSN 5999-01-446-7248