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 5996-01-592-2982
NSN 5835-01-140-9306
NSN 5998-01-597-3794
NSN 6240-01-369-9039
NSN 5930-01-416-9483
NSN 7035-01-045-7202
NSN 5985-01-437-9175
NSN 5935-00-757-3721
NSN 4140-01-421-5895
NSN 6645-01-124-1584
NSN 6620-00-286-5721
NSN 6135-01-051-7836