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 5996-01-279-8669
NSN 5965-01-461-2850
NSN 4140-01-573-8388
NSN 5935-00-434-0934
NSN 5915-01-288-3237
NSN 6145-00-372-3713
NSN 7035-00-275-5604
NSN 5935-00-322-6605
NSN 5835-00-890-3932
NSN 6240-00-080-2012
NSN 5905-00-962-7678
NSN 6130-01-173-2651