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 5965-01-441-6842
NSN 6240-01-562-3223
NSN 6620-01-155-6564
NSN 5999-01-244-6910
NSN 5960-00-478-3039
NSN 5999-01-088-9051
NSN 5910-01-060-3102
NSN 5975-01-446-1759
NSN 5975-00-453-5750
NSN 6145-01-443-4516
NSN 7035-00-360-2008
NSN 6650-01-157-1667