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 5895-01-199-9670
NSN 5835-00-458-4392
NSN 5930-01-178-4403
NSN 6645-01-511-3272
NSN 6645-00-498-6869
NSN 6130-01-610-7622
NSN 5895-01-033-5620
NSN 5835-01-058-6280
NSN 6650-01-581-1184
NSN 6105-01-511-0383
NSN 6145-00-701-8588
NSN 6620-00-089-9778