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 6220-01-370-4215
NSN 5990-01-512-9129
NSN 5945-01-367-6469
NSN 6110-00-908-9283
NSN 5895-00-851-3345
NSN 5915-01-592-3411
NSN 5855-00-862-3345
NSN 5999-00-773-3493
NSN 6320-00-925-0558
NSN 6650-00-917-0436
NSN 5960-00-060-3752
NSN 6135-00-767-0331