Oliekijkglas zonder reflector

The window of oil sight glasses GN 543.2 is embedded in the body during the injection process and it is therefore absolutely leaktight. The sealing ring is embedded in a radial undercut and it cannot be extruded during the tightening operation. The red version indicates a special "control point". Assembly instruction: For mounting on walls of less than 4 mm thickness please use a mounting nuts GN 7430.