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 6220-00-466-2681
NSN 6320-01-342-7548
NSN 5960-00-468-5353
NSN 5975-00-353-2244
NSN 5925-00-406-6115
NSN 5965-01-028-0326
NSN 5895-00-679-8274
NSN 6150-00-276-7483
NSN 5999-01-423-9396
NSN 6645-01-646-2953
NSN 6220-00-482-9605
NSN 5960-01-468-5785