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 5915-01-025-1362
NSN 5835-01-213-0833
NSN 5975-01-044-8950
NSN 6620-00-994-9917
NSN 5985-01-318-9717
NSN 6135-01-591-4181
NSN 7035-00-476-7178
NSN 6145-01-332-2245
NSN 6220-00-810-9563
NSN 4140-01-400-3610
NSN 5935-00-878-0198
NSN 5895-01-321-4664