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 5835-01-193-0391
NSN 5835-01-430-4765
NSN 6240-01-112-7576
NSN 6110-00-435-8007
NSN 5999-01-024-4426
NSN 6320-00-513-8376
NSN 6135-01-422-1440
NSN 5855-01-278-8922
NSN 5950-00-779-0875
NSN 5835-00-740-0246
NSN 5975-01-183-6906
NSN 6685-01-249-8068