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 5925-00-881-6659
NSN 6650-01-051-4972
NSN 5915-01-383-8084
NSN 7035-01-219-9476
NSN 5910-01-427-3819
NSN 5985-01-558-3252
NSN 6105-01-394-5721
NSN 5999-01-509-4584
NSN 5998-00-371-9146
NSN 6145-01-357-2182
NSN 4140-01-205-1100
NSN 5895-01-348-1296