{"product_id":"gardner-spring-634c-extension-spring-0-675-in-od-5-01-lb","title":"Gardner Spring 634C Extension Spring 0.675 in Od 5.01 Lb","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GARDNER SPRING 634C is a galvanized steel extension spring rated for a maximum work load of 5.01 pounds and a spring rate of 2.28 lb\/in. At 0.675 inches outside diameter, 0.048 inches wire diameter, and 4.0 inches overall length, this is a compact, light-duty tension spring suited for mechanical assemblies, HVAC damper linkages, access panels, and similar applications requiring controlled return force. The zinc-plated galvanized finish provides basic corrosion resistance for use in covered or semi-exposed environments. Installation is straightforward and requires no special tooling beyond standard hand tools. This part ships as a set of 3 pieces per package.\u003c\/p\u003e\n\u003cp\u003eThe 634C is commonly used in light mechanical and HVAC service applications where a small-diameter, moderate-load extension spring is needed. Typical uses include damper blade return mechanisms, door latch assemblies, light equipment guards, and control linkages in residential and light commercial HVAC equipment. Its compact 4.0-inch length and 0.675-inch OD allow it to fit in tight mounting arrangements common in sheet-metal enclosures and control panels. HVAC technicians, mechanical contractors, and maintenance professionals are the primary installers.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5.01 lb maximum work load for light-duty tension applications\u003c\/li\u003e\n  \u003cli\u003e2.28 lb\/in spring rate for predictable, consistent return force\u003c\/li\u003e\n  \u003cli\u003e0.675 inches outside diameter fits tight clearance mounting points\u003c\/li\u003e\n  \u003cli\u003eGalvanized zinc-plated steel construction for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e4.0 inches overall length suits compact mechanical assemblies\u003c\/li\u003e\n  \u003cli\u003eSold as a 3-piece set per package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard light-duty extension spring for use in mechanical assemblies, HVAC linkages, and similar applications requiring a 0.675-inch OD spring with a 5.01 lb load rating and 2.28 lb\/in spring rate.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eExtension springs store energy under tension  -  always de-energize or disengage the mechanism before removing or installing the spring to avoid sudden release. Use appropriate hand tools and eye protection when stretching or seating the spring on its hooks or anchors. Verify the installed length and hook engagement before returning the assembly to service. Follow applicable equipment manufacturer guidelines for spring replacement procedures.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Work Load\u003c\/strong\u003e: 5.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpring Rate\u003c\/strong\u003e: 2.28 lb\/in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.675 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Diameter\u003c\/strong\u003e: 0.048 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Galvanized Zinc-Plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Pieces\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 pounds\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: GARDNER SPRING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 634C\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GARDNER SPRING","offers":[{"title":"Default Title","offer_id":52014718878002,"sku":"634C","price":16.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/819d622ece21c1c96cfdafd43782f487.jpg?v=1790007206","url":"https:\/\/voomisupply.com\/products\/gardner-spring-634c-extension-spring-0-675-in-od-5-01-lb","provider":"Voomi Supply","version":"1.0","type":"link"}