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 6610-01-632-3364
NSN 6105-01-223-0664
NSN 4140-01-329-0454
NSN 4140-01-027-1871
NSN 5910-01-519-2308
NSN 5985-00-005-8915
NSN 6145-00-074-4615
NSN 5998-00-292-0214
NSN 5998-01-222-4216
NSN 4140-00-012-3506
NSN 4140-01-438-9434
NSN 5925-00-444-2590