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 5996-01-512-2878
NSN 6145-01-016-0759
NSN 5930-01-292-0619
NSN 5975-01-431-8520
NSN 5985-01-380-3757
NSN 6240-00-141-6143
NSN 5960-01-234-4388
NSN 4140-00-754-8048
NSN 5855-01-574-3597
NSN 5998-00-035-5308
NSN 6130-01-206-4587
NSN 2925-00-324-9052