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 6220-01-258-7322
NSN 5999-00-078-9347
NSN 5920-01-162-6172
NSN 6320-01-600-5808
NSN 6320-01-335-8336
NSN 5965-01-230-5521
NSN 5855-01-522-7389
NSN 2925-00-261-5800
NSN 5835-01-083-4768
NSN 5998-01-318-7208
NSN 5835-01-388-5198
NSN 6145-01-070-0579