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 5895-01-566-8638
NSN 5905-00-841-8709
NSN 6130-00-243-0380
NSN 6620-01-464-6762
NSN 6220-00-062-7029
NSN 5855-00-361-0167
NSN 6145-01-367-8501
NSN 5998-01-269-8298
NSN 5999-01-381-2457
NSN 5985-01-102-2514
NSN 5998-01-341-9283
NSN 6110-01-454-5303