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 6620-01-623-7266
NSN 7035-01-622-7437
NSN 2925-01-346-9522
NSN 5935-01-173-5203
NSN 5998-01-431-8348
NSN 5998-01-449-1075
NSN 5895-01-106-5583
NSN 5985-01-048-7356
NSN 5960-01-351-5074
NSN 6135-00-542-6216
NSN 6610-00-923-1917
NSN 5835-00-133-0599