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 5855-01-634-0259
NSN 5935-01-142-5825
NSN 5855-00-760-3870
NSN 6105-01-579-3695
NSN 6610-00-243-0553
NSN 5999-01-345-5688
NSN 5975-01-310-6454
NSN 5855-01-383-6860
NSN 6105-00-960-0072
NSN 5855-01-351-2541
NSN 7035-01-543-0044
NSN 5920-01-200-6655