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 5950-01-113-0675
NSN 6110-01-614-7662
NSN 5925-01-520-5811
NSN 5835-00-554-0399
NSN 2925-01-334-7122
NSN 6240-01-429-9826
NSN 6620-01-421-6949
NSN 5965-00-679-9501
NSN 7035-00-703-3535
NSN 6645-01-219-5911
NSN 5990-01-458-6789
NSN 5835-01-519-3834