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 6135-00-276-7625
NSN 5960-01-593-4760
NSN 5985-01-243-4085
NSN 6135-00-377-9165
NSN 5985-00-686-2313
NSN 4140-01-512-6230
NSN 5930-00-243-9417
NSN 6105-00-707-5962
NSN 5905-01-250-5805
NSN 5996-01-234-7157
NSN 5998-01-521-4153
NSN 5915-00-428-3688