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 6610-01-573-5949
NSN 6610-01-141-7014
NSN 5945-01-318-7847
NSN 5990-00-626-6252
NSN 5905-01-149-4033
NSN 5996-01-190-9982
NSN 5965-01-147-5655
NSN 5935-01-336-9621
NSN 5990-01-200-7460
NSN 6240-01-262-2039
NSN 4140-01-003-9850
NSN 5925-01-194-3981