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 5996-01-487-3733
NSN 5965-01-556-9520
NSN 5835-01-424-4577
NSN 2925-01-632-3384
NSN 5935-01-614-1227
NSN 6220-00-188-7525
NSN 5835-00-065-6757
NSN 6135-01-463-2445
NSN 6145-01-243-4645
NSN 5985-01-491-2300
NSN 6620-01-642-9678
NSN 6150-01-474-5199