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 5950-01-269-0909
NSN 5915-00-849-1502
NSN 2925-01-122-7812
NSN 5930-00-806-4324
NSN 5930-00-840-9611
NSN 6645-01-058-6260
NSN 2925-00-915-1827
NSN 6645-01-095-9681
NSN 5835-00-034-4976
NSN 6610-01-650-6364
NSN 5975-01-507-2151
NSN 5999-01-414-2399