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 6110-01-013-2737
NSN 6610-01-200-6861
NSN 5895-01-254-9577
NSN 5835-00-233-6327
NSN 7035-01-179-1739
NSN 5915-01-067-9129
NSN 5905-00-932-1743
NSN 6110-01-427-0161
NSN 4140-01-471-4646
NSN 6135-01-180-4588
NSN 5965-00-554-4138
NSN 5998-01-436-2473