{"product_id":"vlier-frn500p-spring-plunger-1-2-13-steel-l-handle","title":"Vlier FRN500P Spring Plunger 1\/2-13 Steel L Handle","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VLIER FRN500P is a steel L handle spring plunger designed for precision positioning, indexing, and locating applications in industrial and mechanical assemblies. The plunger features a 1\/2-13 thread size with a thread length of 1.1 inches and a body length of 2.11 inches. Spring force ranges from 1 pound initial end force to 5 pounds final end force, making it well suited for light-duty detent and positioning work. The plunger diameter is 0.31 inches with a projection of 0.75 inches. This part is installed by maintenance technicians, machine builders, and tooling specialists working with jigs, fixtures, and production machinery.\u003c\/p\u003e\u003cp\u003eThe FRN500P is used in applications where repeatable positioning or detent action is needed without a locking element to hold the plunger in the retracted position. It fits into threaded bores in machine plates, fixture bodies, and tooling blocks. The L handle configuration allows the plunger to be manually retracted without additional tooling, which is common in fixture and jig applications where an operator needs quick access. The non-locking design allows the spring to return the plunger automatically once released, maintaining consistent end force throughout service.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/2-13 thread size with 1.1 inch thread length for standard threaded bore installation\u003c\/li\u003e\n\u003cli\u003eNon-locking plunger type with automatic spring return\u003c\/li\u003e\n\u003cli\u003eInitial end force of 1 pound, final end force of 5 pounds for light-duty detent applications\u003c\/li\u003e\n\u003cli\u003eSteel L handle allows manual retraction without tools; handle length 1 inch, handle diameter 0.19 inches\u003c\/li\u003e\n\u003cli\u003ePlunger projection of 0.75 inches; plunger diameter of 0.31 inches\u003c\/li\u003e\n\u003cli\u003eLocking element included for securing the plunger assembly in the bore\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct install spring plunger for threaded bores sized to accept 1\/2-13 thread in industrial fixtures, jigs, and tooling assemblies.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified maintenance technicians or machine builders familiar with threaded fastener and fixture work. Thread the plunger into a properly tapped 1\/2-13 bore using the hex flats sized at 0.5 inches; do not overtighten as this can distort the plunger body or alter spring force. De-energize or lock out any associated machinery before installation or removal per applicable OSHA lockout\/tagout procedures. Inspect the bore threads for damage or contamination before installation to ensure correct seating and consistent end force.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 2.11 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Height\u003c\/strong\u003e: 0.86 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Between Head and Thread\u003c\/strong\u003e: 0.15 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 Length\u003c\/strong\u003e: 2.11 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Projection\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlunger Type\u003c\/strong\u003e: Non-Locking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking Element\u003c\/strong\u003e: Yes\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: 5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Diameter\u003c\/strong\u003e: 0.19 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHex Size\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: FRN500P\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VLIER","offers":[{"title":"Default Title","offer_id":51958611345714,"sku":"FRN500P","price":31.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/98c9a0941a3da59688c0582af62f86f2.jpg?v=1789945183","url":"https:\/\/voomisupply.com\/products\/vlier-frn500p-spring-plunger-1-2-13-steel-l-handle","provider":"Voomi Supply","version":"1.0","type":"link"}