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 5998-00-370-8098
NSN 6135-01-612-5578
NSN 5998-01-216-9808
NSN 5835-01-631-3940
NSN 6145-01-413-3286
NSN 6220-00-165-1509
NSN 5915-01-203-3283
NSN 5990-00-241-3780
NSN 6240-00-218-1480
NSN 5945-00-356-7985
NSN 2925-01-121-3355
NSN 5910-01-372-8118