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 5965-01-170-5705
NSN 6685-01-390-6257
NSN 6150-01-508-2558
NSN 6110-01-483-5102
NSN 5835-00-912-5656
NSN 2925-01-132-5827
NSN 5950-00-432-7708
NSN 7035-01-323-0164
NSN 6320-00-841-2279
NSN 6145-01-489-1003
NSN 5895-01-395-6712
NSN 6610-01-361-8965