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 5835-01-502-9228
NSN 5960-01-624-1170
NSN 5920-00-110-5477
NSN 5925-01-143-2453
NSN 6320-01-629-1277
NSN 6150-01-151-6293
NSN 5996-00-917-4785
NSN 5985-00-539-9365
NSN 6320-00-149-7570
NSN 5965-01-547-2587
NSN 6320-01-198-4024
NSN 5915-00-218-6513