{"product_id":"century-spring-corporation-c-339-extension-spring","title":"Century Spring Corporation C-339 Extension Spring","description":"\u003cdiv\u003e\u003cp\u003eCentury Spring Corp. C-339 Extension Spring is a robust hardware spring designed to resist a pulling force in extended-length applications. It features a 1-1\/4 inch outside diameter and a 10 inch extended length, with a wire diameter of 0.148 inches. The spring is zinc-plated for corrosion resistance and is manufactured from music wire (ASTM A228) or hard-drawn wire (ASTM A227), offering high strength for repeated extension cycles. The ends are formed to provide secure attachment in assemblies that require a defined hook-point engagement. The C-339 has a maximum deflection of 6.18 inches and a maximum safe load of 73.7 pounds-force, making it suitable for general purpose extension-spring needs in machinery, equipment, or hardware where a relatively large diameter and longer travel are required. This is a standard Century Spring stock item, catalogued under part number C-339, and commonly used in projects requiring durable metal extension springs with reliable performance characteristics. When selecting this spring, verify that your mounting points and environmental conditions align with its steel construction and zinc finish to ensure longevity and safe operation.\u003c\/p\u003e\u003c\/div\u003e","brand":"CENTURY","offers":[{"title":"New","offer_id":51677915414830,"sku":null,"price":359.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_64091135-c6e3-4722-98b2-d5ff269581bc.jpg?v=1769569425","url":"https:\/\/plgautomation.com\/products\/century-spring-corporation-c-339-extension-spring","provider":"PLG Automation ","version":"1.0","type":"link"}