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 6650-00-882-3576
NSN 5895-00-217-2951
NSN 6610-01-354-3087
NSN 5920-01-396-6159
NSN 5935-00-953-9732
NSN 6220-01-508-8223
NSN 2925-01-350-5440
NSN 6685-01-569-3172
NSN 6320-00-004-9158
NSN 5935-01-106-2854
NSN 6650-00-054-4721
NSN 6685-01-471-8417