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 5895-01-483-0928
NSN 5965-00-351-7460
NSN 5990-01-400-3299
NSN 6105-01-463-2387
NSN 6150-01-211-7032
NSN 6135-01-022-5427
NSN 5960-00-799-9471
NSN 2925-00-837-3948
NSN 5975-01-338-1074
NSN 5945-01-053-5624
NSN 5910-00-902-1263
NSN 6105-01-172-3998