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 6645-00-008-3944
NSN 6685-00-628-4262
NSN 6105-00-043-5446
NSN 5960-01-200-4621
NSN 6610-00-659-8760
NSN 5975-01-530-9730
NSN 5998-01-435-5835
NSN 6610-01-135-2149
NSN 5905-00-926-2905
NSN 6130-00-756-7179
NSN 5930-00-986-0060
NSN 6320-01-265-0665