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 6145-01-487-3773
NSN 5985-01-178-5842
NSN 2925-01-381-5307
NSN 5925-01-455-4411
NSN 2925-01-231-6312
NSN 7035-01-158-8860
NSN 6220-01-483-6377
NSN 5895-00-280-2811
NSN 6150-01-260-4133
NSN 5945-00-480-5164
NSN 5945-01-041-0267
NSN 5935-00-554-0244