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 6105-01-104-5214
NSN 5985-01-068-6807
NSN 6645-01-400-2119
NSN 6110-00-476-0533
NSN 5998-00-888-9887
NSN 6130-01-062-0924
NSN 6620-01-387-7645
NSN 5985-00-994-8372
NSN 4140-01-369-8641
NSN 6620-01-654-7142
NSN 6650-01-154-1870
NSN 5905-00-724-3598