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 5905-00-153-4699
NSN 6650-00-349-8732
NSN 6150-01-209-1729
NSN 6685-01-485-0003
NSN 6145-00-557-9447
NSN 5960-00-623-4309
NSN 6240-01-211-2179
NSN 5965-01-488-4009
NSN 5998-00-004-1914
NSN 6130-01-545-4896
NSN 6620-01-442-8444
NSN 6320-01-381-7023