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 6145-01-425-0491
NSN 6240-01-373-4530
NSN 6220-00-121-1885
NSN 5920-01-204-6419
NSN 5950-00-422-0449
NSN 6150-01-086-1793
NSN 6220-01-125-0891
NSN 5960-01-573-6483
NSN 5910-00-468-2385
NSN 6150-00-566-1994
NSN 5960-01-228-8858
NSN 6650-01-512-1930