{"product_id":"vlier-sprsn500p-pull-ring-plunger-1-2-13-stainless-steel","title":"Vlier SPRSN500P Pull Ring Plunger 1\/2-13 Stainless Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VLIER SPRSN500P is a stainless steel pull ring plunger designed for precise positioning and indexing applications in industrial and mechanical assemblies. The unit features a 1\/2-13 threaded body that installs into a tapped hole, with a spring-loaded plunger that extends 0.38 inches under working load. Initial end force starts at 1 pound and rises to a final end force of 4 pounds, making it suitable for light-duty detent and positioning tasks. The pull ring allows manual retraction of the plunger without tools, which is a common requirement in jigs, fixtures, and tooling setups. Maintenance technicians and mechanical assemblers are the typical installers.\u003c\/p\u003e\n\u003cp\u003eThis spring plunger fits applications where repeatable, low-force indexing is needed. Common uses include fixture plates, assembly jigs, machine tool slides, and any mechanism requiring a retractable locating point. The pull ring design is particularly useful in confined spaces or where gloved operation is required. The stainless steel construction makes it appropriate for environments with moisture exposure or mild corrosive conditions. It is sold individually with a minimum order quantity of 1.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePull ring allows tool-free manual plunger retraction\u003c\/li\u003e\n  \u003cli\u003e1\/2-13 thread for installation in standard tapped holes\u003c\/li\u003e\n  \u003cli\u003eSpring force range: 1 pound initial to 4 pounds final end force\u003c\/li\u003e\n  \u003cli\u003eStainless steel construction for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eNon-locking plunger type for smooth detent action\u003c\/li\u003e\n  \u003cli\u003eLocking element included for thread retention after installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-install spring plunger for any application requiring a 1\/2-13 tapped hole and a non-locking, pull-ring-style detent mechanism in industrial or mechanical assemblies.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall into a clean, properly tapped 1\/2-13 hole using a wrench on the 0.5 inch hex head. Ensure the plunger bore in the mating component is sized to the 0.31 inch plunger diameter for correct engagement. Do not overtighten, as this can restrict plunger travel or damage the spring. The locking element secures the body in position once the correct depth is reached.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Type\u003c\/strong\u003e: Non-Locking\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.41 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 0.81 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 0.56 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Diameter\u003c\/strong\u003e: 0.31 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Projection\u003c\/strong\u003e: 0.38 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Length\u003c\/strong\u003e: 1.06 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRing Diameter\u003c\/strong\u003e: 1.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Size\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInitial End Force\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal End Force\u003c\/strong\u003e: 4 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocking Element\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\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: VLIER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SPRSN500P\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VLIER","offers":[{"title":"Default Title","offer_id":51973764776242,"sku":"SPRSN500P","price":41.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/48f891635dc0b8b6a0e13bf07d090525_4b3f4e9e-ddd4-4e34-8dec-740529d23f5b.jpg?v=1789974485","url":"https:\/\/voomisupply.com\/products\/vlier-sprsn500p-pull-ring-plunger-1-2-13-stainless-steel","provider":"Voomi Supply","version":"1.0","type":"link"}