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 5998-01-300-3675
NSN 5920-00-575-8826
NSN 5930-01-116-4533
NSN 7035-01-074-7634
NSN 5925-01-435-5869
NSN 5950-00-228-4894
NSN 5945-01-281-0029
NSN 5930-00-975-5047
NSN 6220-01-415-5698
NSN 6645-00-151-5280
NSN 5935-00-900-6300
NSN 6240-00-740-8901