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 4140-00-061-3110
NSN 6620-00-583-2687
NSN 5930-01-571-7906
NSN 5996-01-630-2492
NSN 4140-00-779-4876
NSN 5915-00-646-9819
NSN 5975-01-025-1613
NSN 5915-01-492-6153
NSN 5965-00-006-8004
NSN 5965-00-088-1722
NSN 5965-00-368-8204
NSN 6110-01-344-9857