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 5999-00-866-3378
NSN 5935-01-552-7402
NSN 5950-01-191-4829
NSN 5975-01-468-5776
NSN 6145-01-058-7193
NSN 5965-01-317-5020
NSN 6645-00-410-2395
NSN 7035-00-574-4223
NSN 5945-01-329-0617
NSN 6240-00-416-6140
NSN 5975-00-228-6006
NSN 5999-01-010-3039