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 6240-01-503-5676
NSN 7035-01-122-1264
NSN 5920-01-322-4216
NSN 5935-00-949-6061
NSN 5925-00-959-4983
NSN 5950-00-290-8090
NSN 6240-00-398-0740
NSN 5945-01-078-7472
NSN 6145-01-126-7273
NSN 6220-01-160-7249
NSN 5910-00-827-2725
NSN 6645-01-412-6580