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 5915-01-250-1217
NSN 6150-00-328-8989
NSN 5975-00-357-0974
NSN 5910-00-883-4209
NSN 5950-01-013-9013
NSN 5965-00-322-9933
NSN 5935-01-420-4081
NSN 5910-01-574-8658
NSN 5895-01-510-3517
NSN 5950-00-194-6823
NSN 6105-01-604-3435
NSN 5920-01-415-2178