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 5915-00-152-4016
NSN 5950-00-381-5738
NSN 5915-01-268-3257
NSN 5835-00-289-9080
NSN 7035-00-096-9986
NSN 6150-01-341-9797
NSN 7035-00-252-7467
NSN 5990-01-650-9034
NSN 6685-01-286-1927
NSN 6150-01-503-6611
NSN 6145-01-322-9536
NSN 6240-01-147-5424