{"product_id":"spi-23-153-0-threaded-ring-gage-1-4-28-class-2a-go-no-go","title":"Spi 23-153-0 Threaded Ring Gage 1\/4-28 Class 2A Go No Go","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SPI 23-153-0 is a double-ring threaded ring gage set used to inspect external threads for dimensional conformance. It includes both a Go ring and a No Go ring in a single package, allowing technicians to verify that a threaded fastener or shaft falls within the accepted tolerance range for a 1\/4-28 UNF thread form. Manufactured from tool steel for durability and wear resistance, this gage is built to NIST-traceable standards and ships with a traceability certification. It is used in machining, fabrication, and quality control environments where thread verification is part of the inspection process.\u003c\/p\u003e\u003cp\u003eThis gage is suited for inspecting 1\/4-28 UNF external threads classified to Class 2A tolerance, which represents the standard fit used in the majority of general-purpose fastener applications. It is commonly used on production floors, in tool cribs, and at inspection stations where machinists, quality control technicians, and maintenance professionals need a fast, reliable method to accept or reject threaded parts without relying on measuring instruments alone.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDouble-ring design provides both Go and No Go gages in one unit\u003c\/li\u003e\n\u003cli\u003e1\/4-28 UNF thread size with Class 2A classification\u003c\/li\u003e\n\u003cli\u003eTool steel construction for long service life under repeated use\u003c\/li\u003e\n\u003cli\u003eNIST-traceable calibration with traceability certification included\u003c\/li\u003e\n\u003cli\u003eCompact form factor fits standard gage storage and tool crib organization\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for inspection of 1\/4-28 UNF external threads conforming to Class 2A tolerance standards. Verify thread form and pitch match before use on any threaded workpiece.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThreaded ring gages are used by quality control technicians and machinists and do not require power or fluid shutoff prior to use. Keep the gage clean and lightly oiled when not in use to prevent corrosion and dimensional drift. Do not force the gage onto a thread; if the Go ring does not pass freely, the thread is out of tolerance. Store in a protected case away from impact or temperature extremes to maintain calibration integrity.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28 UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassification\u003c\/strong\u003e: Class 2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGage Type\u003c\/strong\u003e: Go and No Go\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Configuration\u003c\/strong\u003e: Double Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraceability Standard\u003c\/strong\u003e: NIST\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraceability Certification\u003c\/strong\u003e: Included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.38 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 0.36 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.303 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 23-153-0\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51717861638450,"sku":"23-153-0","price":273.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/892a1ac7eda8274968e43f9684916331.jpg?v=1788546927","url":"https:\/\/voomisupply.com\/products\/spi-23-153-0-threaded-ring-gage-1-4-28-class-2a-go-no-go","provider":"Voomi Supply","version":"1.0","type":"link"}