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 5915-00-911-2996
NSN 6220-01-429-8534
NSN 6105-01-490-6551
NSN 6150-01-479-7704
NSN 5945-00-997-1020
NSN 5915-01-335-6091
NSN 5915-00-840-7655
NSN 5920-01-188-2400
NSN 6240-01-577-1964
NSN 5915-01-138-9660
NSN 5975-01-139-6797
NSN 6145-01-515-5749