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 6320-01-125-3361
NSN 6320-01-359-3921
NSN 6320-01-481-4871
NSN 5935-01-440-3293
NSN 6105-00-488-9418
NSN 5950-01-628-1316
NSN 5950-00-360-3519
NSN 5965-01-443-3480
NSN 6320-00-925-0558
NSN 6220-01-449-1239
NSN 5920-01-420-8580
NSN 5910-01-314-1427