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 6150-01-133-4212
NSN 2925-01-534-7018
NSN 6105-01-074-9074
NSN 4140-01-466-4497
NSN 5920-00-649-6185
NSN 5990-00-226-7894
NSN 5998-01-613-0643
NSN 5998-01-407-6756
NSN 5985-01-550-7398
NSN 7035-01-023-7859
NSN 5920-01-232-1453
NSN 5920-01-598-0219