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 5935-01-495-5752
NSN 6610-01-269-5437
NSN 6240-01-227-4178
NSN 5945-01-386-3208
NSN 6610-01-083-1446
NSN 6610-01-259-5296
NSN 6685-00-153-3914
NSN 5895-01-361-9003
NSN 5960-01-588-5681
NSN 5996-01-159-9089
NSN 5855-01-222-1242
NSN 6610-01-445-7120