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 6610-01-103-4627
NSN 5895-01-602-9141
NSN 6610-01-493-6269
NSN 5835-00-286-5432
NSN 6145-01-249-4329
NSN 6685-00-317-4319
NSN 6130-00-319-0796
NSN 6645-00-736-0476
NSN 5996-01-139-2843
NSN 5855-01-053-0679
NSN 6685-00-956-2964
NSN 6650-01-214-6285