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 5855-01-527-7098
NSN 5835-00-924-4268
NSN 6645-01-014-0793
NSN 5945-01-557-9540
NSN 5950-01-513-8236
NSN 6110-00-914-6693
NSN 5915-01-031-6810
NSN 6240-00-822-4571
NSN 5998-01-660-1669
NSN 5998-01-403-2586
NSN 5855-00-079-2370
NSN 4140-00-992-6215