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 5835-01-615-0451
NSN 5990-01-094-7740
NSN 5935-01-326-6951
NSN 6130-01-398-0440
NSN 5950-01-093-9435
NSN 7035-00-155-9513
NSN 6135-00-455-2425
NSN 5996-01-420-6525
NSN 6645-01-425-2330
NSN 4140-00-833-6239
NSN 5960-01-156-7469
NSN 5895-00-998-6251