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 5950-00-221-0848
NSN 7035-00-865-9105
NSN 6110-00-279-8710
NSN 2925-01-527-8745
NSN 5835-00-711-3371
NSN 6620-00-022-8056
NSN 6685-01-090-3280
NSN 5855-00-149-0766
NSN 6240-01-411-5425
NSN 5996-01-115-6121
NSN 6145-00-104-6047
NSN 6620-00-008-3280