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 6240-01-392-0458
NSN 5975-01-103-0889
NSN 6135-00-553-7995
NSN 6150-01-025-1467
NSN 5965-01-195-2168
NSN 6240-01-063-7685
NSN 5990-01-384-2697
NSN 6145-01-190-0382
NSN 5996-01-492-6948
NSN 6105-01-384-3687
NSN 5945-00-816-9717
NSN 4140-01-079-6886