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 5965-00-161-4578
NSN 5935-01-175-1058
NSN 5855-01-314-8335
NSN 6150-01-110-9839
NSN 6130-00-997-2466
NSN 6620-01-142-0084
NSN 5975-00-263-3379
NSN 6610-00-833-5498
NSN 6645-01-658-5624
NSN 5950-00-707-7997
NSN 5835-00-327-6192
NSN 6145-01-556-8015