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 5855-01-246-0342
NSN 5996-01-522-9470
NSN 2925-00-172-9264
NSN 5835-00-588-2196
NSN 5915-00-699-3131
NSN 5905-01-125-6102
NSN 6105-01-369-6173
NSN 5990-01-531-5962
NSN 6105-00-111-3353
NSN 6240-01-631-7690
NSN 6135-00-628-1142
NSN 6685-00-798-7595