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 5835-00-213-3588
NSN 6320-01-106-4414
NSN 5990-01-487-0871
NSN 2925-00-735-4979
NSN 5996-00-376-5442
NSN 5835-01-485-0210
NSN 5960-01-134-4099
NSN 5835-00-368-4182
NSN 5920-01-186-3953
NSN 5930-01-129-9293
NSN 4140-01-544-4032
NSN 6685-00-513-4971