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 6240-00-181-2503
NSN 5925-01-235-6499
NSN 5996-00-553-7348
NSN 6135-01-271-7151
NSN 6685-01-412-0767
NSN 5905-00-877-5770
NSN 5920-01-245-3584
NSN 6320-01-399-6177
NSN 5925-01-349-8770
NSN 6110-00-005-7878
NSN 5895-01-029-1775
NSN 5935-01-433-8339