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 5999-00-242-4955
NSN 5915-00-078-8561
NSN 5835-01-509-8992
NSN 5855-00-688-9954
NSN 7035-01-347-4429
NSN 5960-00-319-1799
NSN 6685-01-290-3124
NSN 5905-00-349-9908
NSN 4140-01-634-0330
NSN 6645-00-913-2723
NSN 6685-01-424-1542
NSN 6610-00-841-8221