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 7035-01-381-7622
NSN 7035-01-337-8128
NSN 5920-01-661-2618
NSN 6620-01-052-2773
NSN 6150-01-543-4942
NSN 2925-01-345-9439
NSN 5950-01-446-7831
NSN 6645-01-302-9608
NSN 5925-01-526-0133
NSN 5915-01-650-5875
NSN 5835-01-414-3258
NSN 5925-00-734-1441