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 6320-01-116-3980
NSN 5905-01-463-8665
NSN 5950-01-147-2505
NSN 5835-00-431-4451
NSN 6135-01-275-9767
NSN 5905-00-247-8015
NSN 6135-01-628-2903
NSN 6650-01-076-5232
NSN 6150-00-066-9655
NSN 6220-00-075-0751
NSN 6320-00-149-7570
NSN 6620-00-613-3023