{"product_id":"jackson-safety-30321-clear-welding-lens-plate-4x4-5-in","title":"Jackson Safety 30321 Clear Welding Lens Plate 4x4.5 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe JACKSON SAFETY 30321 is a clear polycarbonate replacement lens plate designed for use with compatible welding helmets and face shields. It serves as an inner protective cover lens, shielding the primary filter lens from spatter, slag, and arc debris during welding operations. Constructed from polycarbonate, the lens offers impact resistance appropriate for the welding environment. At 4 inches tall and 4.5 inches wide with a thickness of 0.0625 inches, the 30321 installs via an internal clip-on mount, allowing quick field replacement without tools. Welders, fabricators, and safety-equipment managers working in MIG, TIG, and stick welding applications rely on this type of cover lens to maintain clear sightlines and extend the service life of costlier filter plates.\u003c\/p\u003e\u003cp\u003eThe 30321 is suited for use in light industrial, fabrication shop, and field welding settings where helmet lens cleanliness is critical for arc visibility and operator safety. It is intended as a replacement or spare cover lens for helmets that accept an internal clip-on style insert matching these dimensions. The clear, unshaded design means it functions solely as a protective cover and does not provide arc-flash shade protection on its own. It is typically used in conjunction with a separately installed shade filter plate.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eClear, unshaded polycarbonate construction provides impact-resistant cover lens protection\u003c\/li\u003e\n\u003cli\u003eInternal clip-on mount allows tool-free installation and quick field swap\u003c\/li\u003e\n\u003cli\u003eLens dimensions: 4 inches high by 4.5 inches wide by 0.0625 inches thick\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.64 pounds, adding minimal bulk to the helmet assembly\u003c\/li\u003e\n\u003cli\u003eSingle-unit packaging supports individual replacement or stock replenishment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement cover lens for welding helmets and face shields that accept a 4 inch by 4.5 inch internal clip-on lens plate. Verify helmet lens cavity dimensions before ordering.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by welders or safety equipment technicians familiar with the helmet model in use. Before replacing the lens, remove the helmet from service and ensure the work area is clear of arc hazards. The internal clip-on mount should seat flush and secure without gaps at the edges. Inspect the mount retention points for wear each time the cover lens is replaced to ensure the lens cannot dislodge during operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\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\u003eMaterial\u003c\/strong\u003e: Polycarbonate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Internal Clip On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow Height\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow Width\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow Thickness\u003c\/strong\u003e: 0.0625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.64 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: JACKSON SAFETY\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 30321\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JACKSON SAFETY","offers":[{"title":"Default Title","offer_id":51538785698098,"sku":"30321","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c94446d5613aaf7d4b9dbad30999bb51.jpg?v=1785826523","url":"https:\/\/voomisupply.com\/products\/jackson-safety-30321-clear-welding-lens-plate-4x4-5-in","provider":"Voomi Supply","version":"1.0","type":"link"}