A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5915-01-605-3326
NSN 6135-01-466-3980
NSN 5935-01-316-2553
NSN 6105-01-522-4191
NSN 6220-01-417-3226
NSN 5975-01-141-1535
NSN 6610-01-011-8742
NSN 6620-01-093-1383
NSN 5996-01-415-3901
NSN 5925-01-130-3573
NSN 6685-00-902-4921
NSN 5999-00-606-2072