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 6610-01-448-2590
NSN 5905-01-539-2463
NSN 5998-01-455-3505
NSN 6650-00-264-0664
NSN 5996-01-310-4959
NSN 5855-01-089-2248
NSN 5998-00-810-6803
NSN 6650-00-409-0907
NSN 5855-01-100-3272
NSN 6105-01-058-6867
NSN 6220-00-541-8515
NSN 5998-01-044-3930