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 7035-01-227-2546
NSN 4140-00-112-0630
NSN 5996-01-498-3946
NSN 7035-00-968-4848
NSN 7035-01-227-7492
NSN 6620-01-187-7267
NSN 5835-01-555-8963
NSN 6620-01-423-0833
NSN 6220-01-567-7885
NSN 6620-01-100-3181
NSN 5965-01-521-3224
NSN 5935-00-262-1657