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 5925-01-209-2768
NSN 5990-00-962-2806
NSN 6610-00-393-0510
NSN 6220-01-613-7368
NSN 6645-01-196-6277
NSN 6610-01-624-2561
NSN 5835-00-874-1085
NSN 6320-01-372-8671
NSN 5996-00-272-2560
NSN 6685-01-576-0070
NSN 6685-01-169-2821
NSN 5990-01-328-8225