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 5895-00-520-9337
NSN 6620-01-456-0529
NSN 6620-01-545-4845
NSN 5920-01-458-9515
NSN 5965-00-258-6809
NSN 6320-01-290-0514
NSN 6685-00-961-9347
NSN 6220-01-003-9126
NSN 5935-01-485-0286
NSN 6620-01-175-5922
NSN 5915-01-370-6757
NSN 5925-01-401-5311