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 5935-00-266-0208
NSN 5930-01-645-2707
NSN 6685-01-154-9655
NSN 5960-00-821-2088
NSN 5835-00-060-9889
NSN 7035-01-037-7400
NSN 5996-01-412-3038
NSN 5985-00-151-4538
NSN 5950-01-168-6769
NSN 6620-00-246-5159
NSN 6110-01-367-9454
NSN 5920-01-025-6989