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 5910-01-154-6598
NSN 5985-01-519-3138
NSN 6610-01-458-1988
NSN 5996-01-525-7628
NSN 6135-01-422-1440
NSN 6650-01-072-2808
NSN 6645-01-623-8825
NSN 6240-01-321-1462
NSN 5999-01-634-0576
NSN 5999-00-103-1225
NSN 2925-01-091-4734
NSN 7035-01-586-9147