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 2925-01-342-1712
NSN 6240-00-022-1451
NSN 5945-01-096-1390
NSN 5835-01-281-7281
NSN 6220-00-181-9698
NSN 5996-01-165-9344
NSN 6105-01-462-0766
NSN 5998-01-381-6724
NSN 6645-01-455-1293
NSN 5965-01-537-1536
NSN 6610-01-424-8325
NSN 6135-01-584-0941