{"product_id":"vlier-nns54-threaded-spring-plunger-1-4-20-1in-thread","title":"Vlier NNS54 Threaded Spring Plunger 1\/4-20 1in Thread","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VLIER NNS54 is a standard threaded spring plunger designed to provide controlled, spring-loaded ball or nose engagement in positioning, indexing, and detent applications. It features a 1\/4-20 thread with a 1 inch thread length and a steel body, making it well suited for use in precision mechanical assemblies, fixtures, jigs, and tooling. The Delrin nose minimizes galling and wear against mating surfaces. Initial end force is 3 pounds and final end force is 13 pounds, giving technicians and machinists a predictable engagement range for repeatable positioning tasks.\u003c\/p\u003e\n\u003cp\u003eThis plunger is commonly installed in machine tool fixtures, assembly jigs, production tooling, and industrial equipment wherever a spring-loaded detent or indexing point is required. The 1\/4-20 thread fits a wide range of standard tapped holes found in steel plates, aluminum fixtures, and fabricated frames. The 3\/16 inch projection and 0.118 inch plunger diameter suit applications where a low-profile, positive-stop engagement is needed. Installation is straightforward and typically performed by machinists, toolmakers, or maintenance technicians.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-20 thread with 1 inch thread length for standard tapped-hole installation\u003c\/li\u003e\n  \u003cli\u003eSteel body provides durability in production and industrial environments\u003c\/li\u003e\n  \u003cli\u003eDelrin nose reduces wear and friction against mating surfaces\u003c\/li\u003e\n  \u003cli\u003e3 pound initial end force and 13 pound final end force for predictable detent engagement\u003c\/li\u003e\n  \u003cli\u003e3\/16 inch plunger projection suits low-profile detent and indexing applications\u003c\/li\u003e\n  \u003cli\u003eNo locking element  -  allows full adjustment and removal without thread-locking features\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct installation component for machinery, fixtures, and tooling assemblies using standard 1\/4-20 tapped holes requiring a spring plunger detent.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by threading the NNS54 into a pre-tapped 1\/4-20 hole using a hex key or appropriate driver. Ensure the mating hole is clean and free of debris before installation. No locking element is present, so thread-locking compound may be applied if vibration resistance is required  -  follow the compound manufacturer instructions for cure time before loading the plunger. Always de-energize or lock out equipment before servicing spring plunger assemblies in live machinery.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Projection\u003c\/strong\u003e: 3\/16 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Plunger Diameter\u003c\/strong\u003e: 0.116 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Plunger Diameter\u003c\/strong\u003e: 0.118 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInitial End Force\u003c\/strong\u003e: 3 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal End Force\u003c\/strong\u003e: 13 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Material\u003c\/strong\u003e: Delrin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocking Element\u003c\/strong\u003e: None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlunger Length Type\u003c\/strong\u003e: Standard\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: NNS54\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VLIER","offers":[{"title":"Default Title","offer_id":51972986339634,"sku":"NNS54","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c972d8e360f5c505a12652dae18ed196.jpg?v=1789971495","url":"https:\/\/voomisupply.com\/products\/vlier-nns54-threaded-spring-plunger-1-4-20-1in-thread","provider":"Voomi Supply","version":"1.0","type":"link"}