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 7035-01-432-2424
NSN 2925-00-293-7213
NSN 5835-01-442-6482
NSN 6145-00-269-4271
NSN 6620-01-200-6493
NSN 5915-01-429-8328
NSN 7035-01-364-0286
NSN 6135-00-100-8890
NSN 5855-00-149-0766
NSN 5925-01-168-6090
NSN 5999-01-180-6823
NSN 6610-00-786-0696