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 6105-00-974-6240
NSN 6620-01-406-6840
NSN 6320-01-006-6138
NSN 5985-00-107-6154
NSN 5930-00-727-3501
NSN 6645-00-108-6479
NSN 5965-01-255-8691
NSN 6130-01-056-9928
NSN 6645-00-847-3727
NSN 4140-00-865-8950
NSN 5965-01-334-9275
NSN 6220-01-654-6416