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 5998-00-197-1757
NSN 5895-00-951-0723
NSN 5975-00-894-9639
NSN 7035-01-254-3606
NSN 5835-01-416-6455
NSN 5960-01-416-6187
NSN 6145-00-728-4026
NSN 6135-00-937-2324
NSN 5915-01-200-8283
NSN 5985-00-004-4990
NSN 5950-01-497-1823
NSN 6110-01-135-5789