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 6610-00-256-8006
NSN 5990-00-615-7111
NSN 5930-01-558-8715
NSN 6130-00-142-9532
NSN 6320-00-116-3658
NSN 5895-00-217-2951
NSN 5915-00-813-5158
NSN 4140-00-069-5154
NSN 6240-01-072-6619
NSN 6150-01-544-0271
NSN 5960-01-298-4143
NSN 6150-01-211-6372