{"product_id":"mitutoyo-1803a-10-dial-drop-indicator-0-025-in-lug-back","title":"Mitutoyo 1803A-10 Dial Drop Indicator 0.025 in Lug Back","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MITUTOYO 1803A-10 is a dial drop indicator designed for precise dimensional measurement in manufacturing, machining, and quality control environments. It delivers a measurement range of 0 to 0.025 inches with a graduation of 0.0001 inches per division, providing the resolution needed for close-tolerance inspection work. The 0-5-0 balanced dial reading allows the technician to detect both positive and negative deviation from a set reference. A jeweled bearing movement supports repeatability and long service life under regular shop use. This indicator is installed by machinists, metrologists, and quality inspectors who need a compact, reliable drop-style indicator for surface, bore, or comparative gaging setups.\u003c\/p\u003e\n\u003cp\u003eThe 1803A-10 suits a wide range of precision measurement applications including surface plate inspection, fixture gaging, and machine tool setup on both manual and CNC equipment. The lug back mounting style allows it to attach directly to standard indicator holders and transfer gages. Its compact overall length of approximately 75.90 mm and 0.375-inch stem diameter fit common collet-style holders used in production and toolroom environments. Green limit markers are included for quick visual pass-fail reference during repetitive inspection routines.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0 to 0.025 inch measurement range with 0.0001 inch graduation for close-tolerance inspection\u003c\/li\u003e\n  \u003cli\u003e0-5-0 balanced dial reading for positive and negative deviation detection from a set reference\u003c\/li\u003e\n  \u003cli\u003eJeweled bearing movement for enhanced repeatability and wear resistance\u003c\/li\u003e\n  \u003cli\u003eGlare-free, scratch-resistant crystal for clear dial visibility in shop environments\u003c\/li\u003e\n  \u003cli\u003eLug back mounting for compatibility with standard indicator holders and transfer gages\u003c\/li\u003e\n  \u003cli\u003eIncludes green limit markers and a plastic case for storage and transport\u003c\/li\u003e\n  \u003cli\u003eRevolution counter tracks total indicator travel across the 0.025-inch range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style precision drop indicator meeting ANSI\/AGD Group 1 standards, suitable for use with standard lug back indicator holders and fixtures common in toolroom and production inspection setups.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, metrologists, or quality technicians using standard indicator mounting hardware. Secure the lug back to the holder before zeroing the dial against a known reference surface. Avoid side-loading the stem during setup, as lateral force can affect accuracy and bearing life. Calibrate or verify the indicator against a certified gage block set before critical inspection operations.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e: 0 to 0.025 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Graduation\u003c\/strong\u003e: 0.0001 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 0.0001 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Reading\u003c\/strong\u003e: 0-5-0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRange Per Revolution\u003c\/strong\u003e: 0.010 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Diameter\u003c\/strong\u003e: 1-5\/8 inches (41.28 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStem Diameter\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStem Length\u003c\/strong\u003e: 13.30 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 75.90 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasuring Force\u003c\/strong\u003e: 1.40 N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBack Type\u003c\/strong\u003e: Lug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearing Type\u003c\/strong\u003e: Jeweled\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Color\u003c\/strong\u003e: White\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-48\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRevolution Counter\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCrystal\u003c\/strong\u003e: Glare-Free, Scratch-Resistant\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: Green Limit Markers, Plastic Case\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ANSI\/AGD Group 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: English (Inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\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: MITUTOYO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1803A-10\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MITUTOYO","offers":[{"title":"Default Title","offer_id":51558274597170,"sku":"1803A-10","price":233.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2f6d6ab0ab75824c3b9c623fa6053a58.jpg?v=1786408143","url":"https:\/\/voomisupply.com\/products\/mitutoyo-1803a-10-dial-drop-indicator-0-025-in-lug-back","provider":"Voomi Supply","version":"1.0","type":"link"}