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 6130-01-421-3768
NSN 6220-00-083-7787
NSN 6650-00-885-3775
NSN 5895-00-925-4680
NSN 5930-01-416-2817
NSN 5920-00-649-6185
NSN 6105-00-643-4975
NSN 6130-01-150-9402
NSN 6220-01-181-7117
NSN 5950-01-640-7387
NSN 5975-01-104-6913
NSN 5855-00-231-7790