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 6645-01-458-3814
NSN 5999-01-123-6624
NSN 5950-01-100-3263
NSN 6645-00-963-6354
NSN 5998-01-444-2046
NSN 7035-01-413-6697
NSN 6130-01-046-4509
NSN 5950-01-508-4244
NSN 5999-00-902-7929
NSN 4140-00-205-0853
NSN 5996-00-734-5364
NSN 6150-01-530-9872