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 6220-01-605-9370
NSN 5895-01-508-4524
NSN 6645-00-279-1777
NSN 5950-01-302-8999
NSN 5915-01-013-0243
NSN 5985-00-039-5527
NSN 5910-00-294-3329
NSN 6650-01-272-0331
NSN 2925-00-567-3643
NSN 6240-01-187-3687
NSN 6135-01-430-3119
NSN 6145-00-925-2004