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 5835-01-434-0790
NSN 6620-00-663-8962
NSN 6240-00-527-8614
NSN 6685-00-802-6371
NSN 6650-01-519-3818
NSN 5935-01-592-8275
NSN 5998-01-495-4602
NSN 7035-00-371-7749
NSN 5999-01-421-9795
NSN 6685-01-521-3127
NSN 5905-01-451-7391
NSN 5950-00-350-6728