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 6685-01-492-4936
NSN 5910-00-008-3088
NSN 5895-00-960-7403
NSN 6145-01-619-6527
NSN 5835-01-439-0180
NSN 6685-01-162-5075
NSN 5895-00-583-8339
NSN 6150-01-534-3379
NSN 5996-01-023-7896
NSN 6650-01-548-3495
NSN 5835-01-518-4300
NSN 6620-01-028-4755