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 4140-01-226-3314
NSN 5975-01-625-7397
NSN 5895-00-643-3980
NSN 6320-00-886-9771
NSN 6135-01-573-7164
NSN 5930-01-212-8082
NSN 5895-00-702-5791
NSN 5925-01-186-5842
NSN 5998-01-305-5423
NSN 6610-01-016-9999
NSN 5895-00-063-8001
NSN 2925-00-394-2332