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 6240-01-271-6230
NSN 5925-00-191-6185
NSN 6645-01-168-8465
NSN 5895-01-645-7635
NSN 5925-00-683-7877
NSN 6650-00-857-2260
NSN 6150-01-482-6351
NSN 5835-01-342-7975
NSN 5990-01-617-5156
NSN 7035-00-585-2113
NSN 6110-01-463-3913
NSN 5999-01-504-9553