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The NORTH 4178DGN is a replacement face shield window screen designed to provide clear visual protection in front-line industrial and trade applications. Measuring 8 inches high by 16.5 inches wide and 0.06 inches thick, this polycarbonate-style screen fits into compatible headgear brackets and serves as the primary barrier between the wearer's face and airborne debris, sparks, or splatter. It is a direct replacement component, not a full assembly, and is typically installed by safety-equipment technicians, supervisors, or end users performing routine shield maintenance.
This window screen is suited for use in industrial environments where face protection is required under OSHA or site-specific safety standards. Typical applications include grinding, cutting, light welding prep, and general industrial work where an unobstructed field of view combined with face coverage is necessary. The screen mounts into approved bracket systems without additional hardware beyond what the headgear assembly already provides.
Designed for use with Fibre-Metal F400, F500, FH66, FM70, and FM71 brackets as stated in product documentation.
Installation is performed by removing the worn or damaged screen from the existing headgear bracket and snapping or sliding the replacement screen into position per the bracket manufacturer's instructions. No power tools are required. Ensure the screen is fully seated and locked before returning the equipment to service. Inspect the bracket and headband for damage before installing a new screen.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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