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 5930-00-226-2051
NSN 6145-01-330-2833
NSN 6145-00-301-9124
NSN 6135-01-551-0562
NSN 5975-00-808-9272
NSN 6105-01-260-7871
NSN 5990-01-548-5979
NSN 5835-00-378-1429
NSN 5998-01-254-4979
NSN 6240-00-146-9322
NSN 5915-01-451-3588
NSN 6110-01-615-1525