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 6110-01-090-0417
NSN 6105-01-124-3877
NSN 5998-00-284-3804
NSN 6650-01-047-6719
NSN 5960-01-120-6523
NSN 5920-01-631-8649
NSN 5855-01-225-5855
NSN 6610-01-346-2802
NSN 6610-01-121-4925
NSN 6650-00-885-3775
NSN 5990-00-583-9920
NSN 6145-00-448-8264