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 6240-01-455-1749
NSN 5950-00-099-9612
NSN 5985-00-621-7587
NSN 6685-01-632-8809
NSN 6620-00-100-4517
NSN 6645-01-093-5015
NSN 6105-01-597-6622
NSN 6240-01-497-7901
NSN 6320-00-389-4756
NSN 4140-01-424-3271
NSN 5930-01-527-8296
NSN 5930-01-474-9709