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 5945-01-388-1997
NSN 5985-01-165-1660
NSN 5985-01-151-2485
NSN 5990-00-607-0116
NSN 5960-01-567-1096
NSN 5835-01-004-8997
NSN 5895-01-055-6780
NSN 6685-00-081-2044
NSN 5998-01-388-2583
NSN 5990-00-391-6207
NSN 6645-00-434-8793
NSN 7035-01-214-5171