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 6110-00-521-8932
NSN 5965-00-566-4221
NSN 5998-01-158-4894
NSN 6150-01-292-5439
NSN 5998-01-043-0236
NSN 6620-00-369-9481
NSN 6135-01-436-7733
NSN 6610-01-371-3006
NSN 6145-01-579-3510
NSN 5835-01-378-6804
NSN 6135-01-265-1384
NSN 4140-00-394-3538