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 5920-01-643-5197
NSN 5920-00-917-6824
NSN 5985-01-400-5948
NSN 2925-00-468-5273
NSN 5835-01-258-5597
NSN 6145-01-234-5270
NSN 6240-01-133-4085
NSN 6240-01-363-8258
NSN 5835-01-478-9428
NSN 6620-01-423-7300
NSN 5920-00-276-8657
NSN 6220-01-446-8454