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 6110-01-080-9621
NSN 4140-01-442-8479
NSN 5945-01-254-3773
NSN 6645-00-663-8111
NSN 5920-01-375-3164
NSN 5930-01-215-9297
NSN 6130-01-343-0668
NSN 5990-01-133-0351
NSN 5855-01-029-8733
NSN 5935-01-192-8220
NSN 5985-00-737-0494
NSN 6110-01-029-3403