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 6620-00-269-5168
NSN 6110-00-620-6430
NSN 5998-01-128-3219
NSN 5998-01-085-9809
NSN 5975-01-447-3419
NSN 5990-00-296-4825
NSN 5990-01-424-2954
NSN 6240-01-076-5231
NSN 6105-00-122-3978
NSN 6610-01-462-5980
NSN 2925-00-449-2478
NSN 5998-00-604-7680