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 6110-01-616-2492
NSN 5905-01-411-8084
NSN 5950-01-561-7346
NSN 5935-01-258-5867
NSN 5998-00-225-8522
NSN 6130-01-073-8860
NSN 4140-00-111-3247
NSN 5905-00-909-7568
NSN 6650-00-266-6808
NSN 5950-00-318-9229
NSN 5930-00-597-5064
NSN 6645-01-451-1295