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 6130-01-455-3743
NSN 7035-01-359-7460
NSN 6650-01-463-2274
NSN 5905-01-241-7184
NSN 5895-01-184-1036
NSN 5855-01-500-2531
NSN 5950-00-299-2874
NSN 2925-01-263-3638
NSN 6105-00-446-0068
NSN 6650-00-870-3226
NSN 7035-01-123-8723
NSN 6610-01-426-5090