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 5920-00-011-8314
NSN 5835-00-505-0353
NSN 5930-01-391-4689
NSN 5998-01-521-1240
NSN 6645-01-023-8020
NSN 5960-01-593-4760
NSN 5930-01-605-1152
NSN 7035-00-200-5162
NSN 5999-01-587-9011
NSN 5990-01-328-8225
NSN 6130-01-225-3166
NSN 6685-01-524-1997