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 5990-01-481-3080
NSN 5835-00-074-3700
NSN 5975-01-110-2488
NSN 7035-01-381-6185
NSN 5835-00-179-8451
NSN 6240-00-079-1759
NSN 5965-01-582-1702
NSN 6685-01-103-1319
NSN 6130-01-450-0338
NSN 6220-00-236-1119
NSN 6610-01-254-4196
NSN 5835-00-583-1316