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 5910-00-555-0022
NSN 6240-01-450-4886
NSN 5915-01-085-0048
NSN 5915-01-226-5481
NSN 5975-00-806-2113
NSN 5915-01-245-9694
NSN 6150-01-165-2089
NSN 7035-01-413-2018
NSN 5950-00-081-8787
NSN 6135-00-284-1406
NSN 6685-00-458-8001
NSN 5996-01-225-3837