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 5998-00-378-4096
NSN 5998-00-180-4516
NSN 6105-01-623-6204
NSN 6130-01-158-9437
NSN 5945-01-023-3492
NSN 6150-01-086-6511
NSN 6240-01-480-8996
NSN 2925-00-555-8836
NSN 5960-01-089-6625
NSN 5965-00-897-5560
NSN 6145-00-898-0219
NSN 6220-01-339-2805