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 6650-01-623-0129
NSN 5905-01-490-0985
NSN 5935-01-418-1780
NSN 5985-00-151-4538
NSN 5998-01-146-7584
NSN 5999-01-246-4247
NSN 5960-00-733-8256
NSN 5925-01-231-4235
NSN 6135-01-484-8637
NSN 5960-01-648-1872
NSN 6620-01-525-2108
NSN 6105-01-502-7659