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 4140-01-170-5395
NSN 6220-00-469-3292
NSN 5905-00-383-2915
NSN 5996-00-536-4313
NSN 5945-01-275-3080
NSN 5920-00-862-5820
NSN 6320-01-150-5378
NSN 5998-00-290-5511
NSN 5835-00-936-8753
NSN 5835-00-409-8355
NSN 2925-01-149-0352
NSN 5835-01-538-8080