{"product_id":"vlier-dpfb51-press-fit-ball-plunger-0-188-in-steel","title":"Vlier DPFB51 Press Fit Ball Plunger 0.188 in Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VLIER DPFB51 is a press fit ball plunger designed for precise, repeatable positioning and detent applications in mechanical assemblies. The steel body measures 0.188 inches in diameter and 0.394 inches in length, with a flanged design that seats flush against the mounting surface for consistent installation depth. The nylon ball delivers an initial end force of 1 pound and a final end force of 2.5 pounds, making this plunger well suited for light-duty indexing, latching, and panel retention tasks. The black finish provides basic surface protection. Machinists, mechanical assemblers, and precision equipment technicians are the typical installers.\u003c\/p\u003e\u003cp\u003eThis press fit ball plunger is used in jigs, fixtures, tooling plates, enclosures, and light mechanical assemblies where a spring-loaded ball detent is needed without threaded installation. The press fit body installs directly into a drilled hole, eliminating the need for tapping. The flanged head prevents over-insertion and provides a positive stop against the mounting face. Applications span production tooling, positioning fixtures, panel assemblies, and similar industrial or instrumentation contexts.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePress fit body installs into a standard drilled hole  -  no tapping required\u003c\/li\u003e\n\u003cli\u003eFlanged head provides a positive stop at 0.040 inches flange thickness and 0.250 inches flange diameter\u003c\/li\u003e\n\u003cli\u003eNylon ball with 0.312 inches ball diameter and 0.058 inches maximum ball reach\u003c\/li\u003e\n\u003cli\u003e1 pound initial end force and 2.5 pound final end force for light-duty detent control\u003c\/li\u003e\n\u003cli\u003eSteel body with black finish for surface protection\u003c\/li\u003e\n\u003cli\u003eCompact footprint: 0.188 inches body diameter by 0.394 inches body length\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a press fit ball plunger replacement or new-installation component for mechanical assemblies requiring a 0.188 inch diameter press fit bore.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by pressing the plunger body into a precisely drilled hole sized to the 0.188 inch body diameter  -  an interference fit is required for secure retention. A drill press or arbor press is recommended to drive the plunger straight and to full depth without damaging the flange. Verify hole depth and diameter tolerances before pressing to prevent misalignment or damage to the nylon ball. No power shutoff is required for typical tooling or fixture installation, but follow all applicable shop safety procedures for press operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 0.188 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 0.394 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Material\u003c\/strong\u003e: Nylon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Diameter\u003c\/strong\u003e: 0.312 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Ball Reach\u003c\/strong\u003e: 0.058 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: 2.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Flange\u003c\/strong\u003e: 0.394 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Thickness\u003c\/strong\u003e: 0.040 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Diameter\u003c\/strong\u003e: 0.250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.015 pounds\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: DPFB51\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VLIER","offers":[{"title":"Default Title","offer_id":51972213604658,"sku":"DPFB51","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4c5fc708bed019e928a212b6bdd59ca8_6752cfe3-8f5e-4dad-8be1-84f73f4a4026.jpg?v=1789964607","url":"https:\/\/voomisupply.com\/products\/vlier-dpfb51-press-fit-ball-plunger-0-188-in-steel","provider":"Voomi Supply","version":"1.0","type":"link"}