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 6240-01-523-9983
NSN 5895-00-011-7880
NSN 5925-01-592-4264
NSN 5905-01-360-0603
NSN 6110-00-271-9928
NSN 6685-01-552-7820
NSN 6645-01-400-2119
NSN 6135-01-485-4512
NSN 7035-01-342-7620
NSN 6220-01-603-7605
NSN 5925-00-429-2690
NSN 2925-01-191-9668