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 4140-01-394-5304
NSN 5905-01-523-3429
NSN 2925-01-327-3069
NSN 6620-00-170-5296
NSN 5945-00-015-2820
NSN 6620-01-476-4567
NSN 5905-00-984-7093
NSN 6135-01-319-5567
NSN 6145-01-613-0161
NSN 5999-00-753-7450
NSN 6110-01-469-7980
NSN 5999-01-371-2185