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 5930-00-171-8867
NSN 6105-01-262-6080
NSN 6105-00-954-6535
NSN 5920-00-006-1919
NSN 7035-00-337-8745
NSN 6110-01-390-5584
NSN 5998-01-408-2409
NSN 5915-00-824-3695
NSN 2925-01-194-9737
NSN 5925-01-227-4631
NSN 6620-00-017-8098
NSN 5925-01-432-0547