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 6220-01-323-1314
NSN 5950-01-621-2907
NSN 6240-01-224-7656
NSN 6650-00-356-8405
NSN 6620-01-512-0132
NSN 5895-00-254-5001
NSN 6110-01-102-2370
NSN 5960-01-411-5899
NSN 5960-01-599-9821
NSN 5965-01-609-3009
NSN 6130-00-216-9214
NSN 6105-00-224-4780