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 5975-01-550-4090
NSN 5855-01-236-9645
NSN 6685-00-676-5109
NSN 6150-01-449-2073
NSN 5950-01-356-8586
NSN 6130-01-464-3341
NSN 5905-01-392-2006
NSN 5915-01-256-8201
NSN 4140-01-624-1218
NSN 6240-00-398-0740
NSN 5935-01-535-5871
NSN 5910-00-490-3759