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 6645-01-426-8621
NSN 6620-01-274-3423
NSN 6105-00-110-5861
NSN 5998-01-196-4935
NSN 4140-00-125-0837
NSN 5895-01-537-5443
NSN 2925-01-196-2904
NSN 6110-00-250-7913
NSN 6220-00-303-8415
NSN 6220-00-917-0881
NSN 5945-00-241-3004
NSN 5965-01-371-1297