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 5920-01-351-0366
NSN 6620-00-033-3280
NSN 6685-01-085-7301
NSN 5985-00-456-0240
NSN 5855-00-149-0766
NSN 6610-01-023-1816
NSN 5910-00-841-3754
NSN 6620-01-095-8937
NSN 5910-00-235-2356
NSN 6650-00-962-3568
NSN 5835-00-814-1359
NSN 2925-01-068-3844