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 6145-01-187-8909
NSN 5965-00-548-7119
NSN 6240-01-396-5639
NSN 5835-01-193-6192
NSN 5990-01-170-6081
NSN 6220-00-823-6688
NSN 4140-01-530-2775
NSN 6110-00-424-4557
NSN 6645-01-400-2119
NSN 5999-01-377-9403
NSN 6650-00-294-0881
NSN 5998-00-104-5985