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 5996-01-297-1564
NSN 6685-01-081-8704
NSN 6685-00-809-7599
NSN 6110-00-460-7179
NSN 5835-00-111-3419
NSN 6240-01-531-1684
NSN 5935-01-183-3554
NSN 5975-00-155-7065
NSN 6645-01-449-0785
NSN 5895-01-429-3472
NSN 5996-00-836-2558
NSN 6145-01-148-1213