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 5930-01-467-9140
NSN 5998-00-951-3999
NSN 5925-00-862-0142
NSN 6610-01-633-8931
NSN 5998-01-468-2640
NSN 5835-01-247-2634
NSN 5990-01-481-3080
NSN 5910-01-202-8330
NSN 5950-01-370-7837
NSN 4140-01-139-6192
NSN 6150-00-911-9596
NSN 6645-00-593-5420