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 5910-01-170-4424
NSN 6685-00-682-4664
NSN 5920-01-396-0124
NSN 5990-01-050-0619
NSN 5990-01-492-6575
NSN 6135-01-314-8416
NSN 5996-01-633-7979
NSN 5965-00-208-4896
NSN 6105-01-349-3317
NSN 6130-01-379-7534
NSN 6220-00-789-0024
NSN 5960-01-214-4518