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 5998-01-175-7528
NSN 5935-01-618-7868
NSN 5855-01-366-2429
NSN 6645-01-348-8146
NSN 6240-00-215-8550
NSN 5985-01-514-6333
NSN 5855-00-797-8217
NSN 5950-00-469-3517
NSN 7035-00-142-9076
NSN 5855-01-603-2434
NSN 6685-01-481-2189
NSN 5910-00-164-2099