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 2925-01-149-2865
NSN 5998-01-210-8680
NSN 7035-00-145-9138
NSN 6220-00-900-5302
NSN 6150-00-775-0934
NSN 7035-01-351-4111
NSN 5996-00-272-2560
NSN 5996-01-014-5852
NSN 5835-01-529-3050
NSN 6610-00-400-9355
NSN 6105-01-348-6606
NSN 6110-01-125-3372