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 5998-00-632-3063
NSN 5996-01-112-2360
NSN 5999-00-962-7154
NSN 6135-01-062-9356
NSN 5975-01-459-8112
NSN 5915-00-661-2223
NSN 6610-01-274-2479
NSN 6110-01-076-2677
NSN 5999-01-423-8329
NSN 4140-01-578-6088
NSN 2925-01-422-1542
NSN 5985-01-268-1011