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 5960-01-069-2009
NSN 5835-01-550-1577
NSN 5996-00-456-0895
NSN 5945-01-492-9907
NSN 5965-01-238-3900
NSN 6240-01-068-8828
NSN 2925-01-043-9786
NSN 6135-01-431-6801
NSN 6620-00-355-1734
NSN 5935-01-566-0070
NSN 2925-00-984-7525
NSN 5895-01-031-5562