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 6685-01-620-0900
NSN 5999-00-515-7354
NSN 5990-01-333-2294
NSN 5960-00-686-0559
NSN 5905-01-196-6154
NSN 6135-01-366-9633
NSN 6145-01-323-8431
NSN 5996-01-212-3066
NSN 6105-00-836-9331
NSN 2925-01-077-3310
NSN 5835-00-083-6557
NSN 5925-00-147-0749