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 5950-00-281-2389
NSN 5915-01-238-7382
NSN 6240-00-227-0135
NSN 6610-01-633-8931
NSN 5835-01-399-5820
NSN 6130-00-302-3829
NSN 5910-01-573-1863
NSN 5915-01-099-8398
NSN 5975-01-459-1454
NSN 6110-00-373-8691
NSN 5945-01-512-0284
NSN 5999-00-222-8606