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 5985-00-186-0732
NSN 6650-01-056-5418
NSN 5996-00-681-0490
NSN 4140-01-182-4830
NSN 5985-01-304-3861
NSN 6650-01-024-9554
NSN 5915-00-141-0410
NSN 2925-00-836-9543
NSN 5950-00-434-9127
NSN 5855-01-578-6742
NSN 5920-01-129-1473
NSN 5998-00-210-8899