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 4140-01-378-6710
NSN 6135-01-069-2482
NSN 5905-00-063-6851
NSN 5965-00-100-1291
NSN 5905-00-270-2946
NSN 5855-01-122-3125
NSN 5996-01-474-3726
NSN 6685-00-421-5420
NSN 2925-01-560-4123
NSN 5835-00-725-2087
NSN 6130-01-642-8393
NSN 6150-00-033-2996