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 6650-01-296-9807
NSN 7035-01-353-6861
NSN 5990-00-855-7292
NSN 6130-01-426-2685
NSN 5996-01-021-3627
NSN 6620-01-575-9561
NSN 6645-01-585-0018
NSN 5950-01-294-4998
NSN 5855-01-054-9014
NSN 5975-00-493-3614
NSN 5950-01-056-1018
NSN 6135-01-282-4326