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 6320-01-461-5866
NSN 5960-00-509-4549
NSN 6610-01-431-7840
NSN 5975-00-004-9431
NSN 2925-00-947-9814
NSN 6150-01-236-2172
NSN 5945-01-254-5906
NSN 6105-00-060-1731
NSN 5999-01-424-7415
NSN 6320-00-149-7570
NSN 6645-01-143-0137
NSN 4140-00-078-9357