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 6320-01-504-3948
NSN 5925-00-977-0916
NSN 5895-01-206-9316
NSN 6610-01-073-2649
NSN 5999-01-165-4187
NSN 5925-00-123-5767
NSN 6135-01-633-8502
NSN 5960-01-322-7820
NSN 5945-01-441-0935
NSN 5920-01-447-4265
NSN 6145-00-964-8859
NSN 5975-01-101-5615