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 6220-01-437-2487
NSN 5998-00-242-7271
NSN 5920-01-317-1801
NSN 6145-01-160-4627
NSN 5920-01-250-8793
NSN 2925-00-516-8841
NSN 6240-01-155-0875
NSN 5996-01-335-3512
NSN 5855-01-275-5470
NSN 5945-00-597-5722
NSN 5965-01-555-8775
NSN 5925-01-510-1138