A mechanical device designed to permit a free flow of air into and out of an enclosure, usually used on engine crankcase, vehicular differentials and transmissions, pumps, compressors, and the like. see also cap, vent, fuel storage tank. excludes ventalator (as modified).
Classification: Pressure-reducing valves, pneumatic fluid power type, filter-regulators and filter-regulator-lubricators
NSN 5935-01-185-1537
NSN 5960-01-154-0018
NSN 5915-01-599-2343
NSN 6645-01-342-6070
NSN 5990-01-269-2111
NSN 5895-01-310-8659
NSN 5985-01-492-7955
NSN 6105-01-004-0456
NSN 6220-01-082-7766
NSN 6620-00-526-8996
NSN 6135-00-753-2276
NSN 5855-01-203-4719