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 6135-01-139-1700
NSN 6135-00-461-3590
NSN 5835-01-364-6830
NSN 6650-01-137-3278
NSN 6220-00-923-1202
NSN 5975-00-707-8036
NSN 5990-00-829-8960
NSN 5905-01-411-4305
NSN 5945-00-905-6692
NSN 5999-01-358-3433
NSN 6320-00-004-9158
NSN 5925-01-012-3624