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 5905-01-215-1896
NSN 6320-00-977-3930
NSN 5960-00-477-1203
NSN 6150-01-100-4337
NSN 6150-01-639-8152
NSN 6685-00-087-6331
NSN 6685-01-026-0111
NSN 6650-01-330-6740
NSN 6105-01-591-4356
NSN 6150-00-390-3422
NSN 5996-01-139-2843
NSN 5990-01-417-4402