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 6150-01-383-0804
NSN 5930-01-459-7993
NSN 5895-01-576-9546
NSN 5965-00-004-6371
NSN 5930-00-059-7398
NSN 5945-00-232-4058
NSN 5945-01-075-6528
NSN 5975-01-329-4970
NSN 5930-01-457-5845
NSN 6610-01-414-7481
NSN 6145-00-314-6841
NSN 5920-01-555-9703