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 5996-00-675-4823
NSN 5975-01-445-9107
NSN 5855-01-339-1718
NSN 5915-01-431-8093
NSN 5960-01-376-3880
NSN 6130-01-094-9827
NSN 6650-00-287-5868
NSN 5925-01-154-0867
NSN 6685-01-589-2852
NSN 5998-01-298-0807
NSN 6110-01-061-9013
NSN 5925-00-539-8372