{"product_id":"vermont-gage-451000000-pipe-thread-ring-gage-nptf-4","title":"Vermont Gage 451000000 Pipe Thread Ring Gage Nptf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VERMONT GAGE 451000000 is a solid pipe thread ring gage designed to inspect and verify NPTF external pipe threads at the 2-1\/2 inch, 8 threads-per-inch size. Built from tool steel hardened to RC 60-62, this 6-step gage performs a crest check to confirm thread form conformance per ASME B1.20.5. Each unit ships with a Certificate of Accuracy traceable to NIST standards. Dimensional evaluation uses the inch dimension system. This gage is a quality control instrument used by machinists, inspection technicians, and pipe fabricators working to tight thread tolerances on NPTF fittings and connections.\u003c\/p\u003e\n\u003cp\u003eThis ring gage is suited for production floor and inspection lab use wherever NPTF threaded pipe connections must be verified before assembly. It applies to quality control workflows in industrial manufacturing, oil and gas, hydraulic, and heavy mechanical piping applications where ASME B1.20.5 compliance is required. The solid, uncoated tool steel construction holds up under repeated use in shop environments. It is appropriate for use by QC inspectors, metrology technicians, and pipe fitting fabricators checking external thread form on 2-1\/2 inch-8 NPTF pipe components.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e6-step gage design for crest check inspection of NPTF external threads\u003c\/li\u003e\n  \u003cli\u003eThread size 2-1\/2 inches, 8 threads per inch (NPTF)\u003c\/li\u003e\n  \u003cli\u003eTool steel construction hardened to RC 60-62 for long service life\u003c\/li\u003e\n  \u003cli\u003eMeets ASME B1.20.5 standard for pipe thread gaging\u003c\/li\u003e\n  \u003cli\u003eTolerance Class X for precise dimensional conformance\u003c\/li\u003e\n  \u003cli\u003eIncludes Certificate of Accuracy with NIST traceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for inspection of NPTF external pipe threads at the 2-1\/2 inch, 8 TPI size per ASME B1.20.5. Suitable for use with any pipe fitting or component requiring crest check verification at this thread specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis gage is a precision inspection instrument and should be handled by qualified QC or metrology personnel. Store in a protective case away from moisture and debris to preserve calibration integrity. Do not force the gage onto threads; resistance beyond normal hand engagement indicates a thread nonconformance or gage wear. Periodic recalibration against NIST-traceable standards is recommended to maintain measurement confidence.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 2-1\/2 inches, 8 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: NPTF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGage Type\u003c\/strong\u003e: 6-Step\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Class\u003c\/strong\u003e: Crest Check\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Class\u003c\/strong\u003e: X\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimension Type\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: RC 60-62\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGage Design\u003c\/strong\u003e: Solid\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B1.20.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Certification\u003c\/strong\u003e: Certificate of Accuracy with NIST Traceability\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: United States\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: VERMONT GAGE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 451000000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VERMONT GAGE","offers":[{"title":"Default Title","offer_id":68103447904562,"sku":"451116070","price":1138.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8f99ba5cf20cff1d0ce38f88268d74f0_6fd375dd-5ac8-434b-95d6-0d4a5f28ae85.jpg?v=1793305443","url":"https:\/\/voomisupply.com\/products\/vermont-gage-451000000-pipe-thread-ring-gage-nptf-4","provider":"Voomi Supply","version":"1.0","type":"link"}