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 6130-01-416-1200
NSN 5950-01-507-6010
NSN 5950-01-410-2925
NSN 5935-00-148-9730
NSN 5915-00-103-1656
NSN 6110-00-795-3706
NSN 5999-00-369-0925
NSN 6110-01-423-0739
NSN 5945-00-388-3253
NSN 6240-01-212-3255
NSN 6130-01-093-4997
NSN 5985-01-359-9182