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 5990-01-503-5475
NSN 6150-01-241-1384
NSN 5930-01-041-9191
NSN 2925-00-777-2902
NSN 6135-00-577-8429
NSN 6620-00-800-5579
NSN 5999-01-458-3725
NSN 6150-01-285-9606
NSN 5996-01-415-3901
NSN 6620-01-305-0412
NSN 5960-00-519-9880
NSN 6135-01-124-2376