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 5975-00-377-0650
NSN 6130-00-056-2655
NSN 6130-01-508-4327
NSN 6135-01-139-1700
NSN 5975-01-654-6917
NSN 5965-01-307-6700
NSN 5945-00-899-8578
NSN 5910-01-139-6090
NSN 6130-01-426-8841
NSN 5960-01-468-5785
NSN 6610-01-494-6319
NSN 5945-01-473-9858