{"product_id":"lincoln-electric-kh619-polycarbonate-replacement-lens","title":"Lincoln Electric KH619 Polycarbonate Replacement Lens","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe LINCOLN ELECTRIC KH619 is a clear polycarbonate replacement lens designed for welding helmets and face shields that use an inside-mount window configuration. Measuring 5.25 inches wide by 4.5 inches high with a thickness of 0.25 inches, this lens provides a reliable protective barrier against sparks, spatter, and debris. Manufactured from polycarbonate, it offers impact resistance suitable for demanding shop and field environments. The KH619 meets ANSI Z87.1 safety standards, making it appropriate for use in applications where certified eye protection is required. Welding technicians and fabricators install this lens as a direct service replacement when the original lens becomes scratched, pitted, or otherwise compromised.\u003c\/p\u003e\n\u003cp\u003eThe KH619 is suited for use in light industrial, fabrication, and maintenance welding environments where inside-mount replacement lenses are required. It is a stock service item typically kept on hand by welding shops and maintenance departments to minimize downtime during helmet servicing. The clear lens shade allows it to function as an outer or inner protective cover plate rather than a shaded filter lens, making it appropriate for grinding and general eye protection applications as well as welding support tasks.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClear polycarbonate construction provides impact-resistant eye protection\u003c\/li\u003e\n  \u003cli\u003eInside mount design for direct drop-in replacement in compatible helmet windows\u003c\/li\u003e\n  \u003cli\u003eDimensions of 5.25 inches wide by 4.5 inches high by 0.25 inches thick\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI Z87.1 certified safety standards\u003c\/li\u003e\n  \u003cli\u003eNo diopter correction — flat lens for standard protective use\u003c\/li\u003e\n  \u003cli\u003eSold individually for single-unit service replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style inside-mount replacement lens for welding helmets and face shields requiring a 5.25 inch wide by 4.5 inch high window cover plate.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by welding technicians or the end user during routine helmet maintenance. Before replacing the lens, ensure the helmet or face shield is removed from service and inspected for frame damage. Seat the lens fully into the inside-mount retainer channel and confirm it is secure before returning the helmet to use. Follow the helmet manufacturer's service instructions and applicable ANSI Z87.1 guidelines when servicing eye protection equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Polycarbonate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLens Color\u003c\/strong\u003e: Clear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLens Shade\u003c\/strong\u003e: None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Inside\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWindow Width\u003c\/strong\u003e: 5.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWindow Height\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWindow Thickness\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.75 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiopter\u003c\/strong\u003e: 0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI Z87.1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: LINCOLN ELECTRIC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: KH619\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LINCOLN ELECTRIC","offers":[{"title":"Default Title","offer_id":51557276156210,"sku":"KH619","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9683a2aa6d007bbbed05a37706d95c03.jpg?v=1786384968","url":"https:\/\/voomisupply.com\/products\/lincoln-electric-kh619-polycarbonate-replacement-lens","provider":"Voomi Supply","version":"1.0","type":"link"}