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 6110-01-400-4207
NSN 5930-01-227-4906
NSN 5935-01-316-2553
NSN 5910-00-870-0141
NSN 6130-01-563-7746
NSN 6620-01-580-2112
NSN 6610-00-374-1563
NSN 5998-00-147-3718
NSN 5999-01-486-0410
NSN 5965-00-402-3377
NSN 5985-00-325-5496
NSN 5960-00-488-4798