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 5998-01-188-6449
NSN 5855-01-593-3985
NSN 5835-01-062-2235
NSN 6620-01-244-3427
NSN 5855-01-074-3336
NSN 2925-01-053-0886
NSN 5895-01-452-0205
NSN 5960-00-581-5821
NSN 6135-00-100-8890
NSN 5905-01-369-6093
NSN 2925-00-441-8252
NSN 5855-00-757-5149