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 6145-00-818-8679
NSN 5910-00-475-9772
NSN 5975-00-155-4181
NSN 6105-01-461-8426
NSN 6685-01-560-4817
NSN 5975-01-024-0678
NSN 5925-01-169-8205
NSN 6130-00-457-0593
NSN 5935-01-267-9615
NSN 5935-00-102-8736
NSN 5835-01-468-6170
NSN 6135-00-613-1068