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 6150-00-996-7668
NSN 6645-00-515-6148
NSN 6150-01-646-1682
NSN 5950-00-539-9877
NSN 6320-00-228-5678
NSN 6320-01-564-0893
NSN 5925-00-227-0396
NSN 5975-01-058-9099
NSN 5990-01-364-0813
NSN 5975-01-229-0635
NSN 5930-00-075-4871
NSN 5975-01-526-3741