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 6135-01-359-0051
NSN 6145-01-311-8785
NSN 5950-00-203-5621
NSN 5925-00-458-3146
NSN 6135-01-631-0269
NSN 6220-00-495-5116
NSN 5998-00-173-6022
NSN 5835-00-617-3578
NSN 5998-00-945-4219
NSN 5985-01-407-0027
NSN 7035-01-437-9694
NSN 6320-01-056-1164