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 6650-01-654-8017
NSN 6220-00-339-2756
NSN 6620-01-586-8237
NSN 6220-01-131-5295
NSN 5895-01-563-9813
NSN 6150-01-239-7498
NSN 5965-00-558-3684
NSN 5925-01-272-4330
NSN 5930-01-056-5022
NSN 5920-00-816-5218
NSN 5895-01-133-2027
NSN 5985-00-782-0423