{"product_id":"aic-tillage-notched-concave-disc-blade-20x6-5mm-aict-0038","title":"AIC Tillage | Notched Concave Disc Blade | 20\" x 6.5mm | Replaces John Deere NS90340002 | AICT-0038","description":"\u003cp\u003e\u003cstrong\u003eAIC Tillage AICT-0038 |\u003c\/strong\u003e \u003cstrong\u003e20\" x 6.5mm notched concave disc blade\u003c\/strong\u003e with a \u003cstrong\u003e4-bolt flat-center mounting design\u003c\/strong\u003e, built as a direct replacement for \u003cstrong\u003eJohn Deere OEM NS90340002\u003c\/strong\u003e for high-speed tillage and vertical tillage applications.\u003c\/p\u003e\n\n\u003cp\u003eThis \u003cstrong\u003eheavy-duty notched concave disc blade\u003c\/strong\u003e is designed for effective \u003cstrong\u003esoil penetration\u003c\/strong\u003e, \u003cstrong\u003eresidue cutting\u003c\/strong\u003e, and \u003cstrong\u003esoil mixing\u003c\/strong\u003e in demanding field conditions. The \u003cstrong\u003econcave profile\u003c\/strong\u003e helps move and lift soil, while the \u003cstrong\u003enotched edge\u003c\/strong\u003e improves bite and cutting action in heavier residue and firmer ground.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e20\" diameter\u003c\/strong\u003e and \u003cstrong\u003e6.5mm thickness\u003c\/strong\u003e make this blade a strong fit for modern \u003cstrong\u003ehigh-speed discs\u003c\/strong\u003e and \u003cstrong\u003evertical tillage tools\u003c\/strong\u003e where durability, residue sizing, and consistent tillage performance are critical. This blade is commonly used across multiple brands when the \u003cstrong\u003ediameter\u003c\/strong\u003e, \u003cstrong\u003ethickness\u003c\/strong\u003e, and \u003cstrong\u003e4-bolt flat-center mounting pattern\u003c\/strong\u003e match the original blade.\u003c\/p\u003e\n\n\u003ch4\u003e\n\u003cstrong\u003eWhy notched concave blades?\u003c\/strong\u003e\u003cbr\u003e\nThe \u003cstrong\u003econcave blade profile\u003c\/strong\u003e helps lift and move soil for improved mixing, while the \u003cstrong\u003enotched edge\u003c\/strong\u003e cuts residue more aggressively for better incorporation and field finish in high-speed tillage conditions.\u003c\/h4\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility \u0026amp; Application Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect replacement for \u003cstrong\u003eJohn Deere NS90340002\u003c\/strong\u003e\u003cbr\u003eand \u003cstrong\u003e5NS90340002\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eAlso cross-referenced to selected \u003cstrong\u003eNorwood\u003c\/strong\u003e, \u003cstrong\u003eDegelman\u003c\/strong\u003e, and \u003cstrong\u003eKinze\u003c\/strong\u003e high-speed tillage applications.\u003c\/li\u003e\n\u003cli\u003eFits blades using a \u003cstrong\u003e20\" diameter\u003c\/strong\u003e, \u003cstrong\u003e6.5mm thickness\u003c\/strong\u003e,\u003cbr\u003eand \u003cstrong\u003e4-bolt flat-center mounting pattern\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAlways verify blade diameter, thickness,\u003cbr\u003ebolt pattern, and mounting dimensions before ordering.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin-top: 1em;\"\u003eProduct Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #e0e0e0; color: #333;\"\u003e\n      \u003cth style=\"width: 40%; padding: 12px; border-bottom: 1px solid #999; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"width: 60%; padding: 12px; border-bottom: 1px solid #999; text-align: left;\"\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003ePart Number\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eAICT-0038\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd; background: #f4f4f4;\"\u003eOEM Reference\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\n\u003cstrong\u003eNS90340002\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e5NS90340002\u003c\/strong\u003e\n\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003eBrand\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eAIC Tillage\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003eDisc Type\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eNotched Concave Disc Blade\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003eDiameter\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\n\u003cstrong\u003e20\"\u003c\/strong\u003e\u003cbr\u003e(508 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003eThickness\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\n\u003cstrong\u003e6.5mm\u003c\/strong\u003e\u003cbr\u003e(approx. 1\/4\")\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003eMounting Style\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003e4-Bolt Flat Center\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003eBolt Pattern\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e4-hole mount on 7\" flat center\u003cbr\u003ecommonly referenced with\u003cbr\u003e5-1\/4\" outer PCD and 3-7\/8\" inner PCD\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003eCenter Hole\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003eN\/A\u003cbr\u003eflat-center bolt-on design\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003eApplication\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003eHigh-speed tillage discs\u003cbr\u003eand vertical tillage equipment\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"margin-top: 1em;\"\u003eFits Machine Models\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #e0e0e0; color: #333;\"\u003e\n      \u003cth style=\"width: 22%; padding: 12px; border-bottom: 1px solid #999; text-align: left;\"\u003eBrand\u003c\/th\u003e\n      \u003cth style=\"width: 78%; padding: 12px; border-bottom: 1px solid #999; text-align: left;\"\u003eModel\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd; vertical-align: top;\"\u003e\u003cstrong\u003eJohn Deere\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\n        \u003cstrong\u003e2680H\u003c\/strong\u003e High-Performance Disc\u003cbr\u003e\n        \u003cstrong\u003eHSD Series\u003c\/strong\u003e\u003cbr\u003e\n        HSD25, HSD29, HSD32, HSD35,\u003cbr\u003e\n        HSD39, HSD42, HSD45\n      \u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd; vertical-align: top;\"\u003e\u003cstrong\u003eNorwood\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\n        \u003cstrong\u003eKwik-Till\u003c\/strong\u003e\u003cbr\u003e\n        HSD800, HSD1000, HSD1600, HSD1775,\u003cbr\u003e\n        HSD2100, HSD2450, HSD2500,\u003cbr\u003e\n        HSD3000, HSD3500, HSD4000,\u003cbr\u003e\n        HASD4500\n      \u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd; vertical-align: top;\"\u003e\u003cstrong\u003eDegelman\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\n        \u003cstrong\u003ePro-Till\u003c\/strong\u003e\u003cbr\u003e\n        20, 26, 33, 40\n      \u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd; vertical-align: top;\"\u003e\u003cstrong\u003eKinze\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\n        \u003cstrong\u003eMach Till\u003c\/strong\u003e\u003cbr\u003e\n        High-speed tillage applications\u003cbr\u003e\n        using matching 20\" x 6.5mm\u003cbr\u003e\n        4-bolt flat-center blades\n      \u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin-top: 1em;\"\u003eCross Reference\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #e0e0e0; color: #333;\"\u003e\n      \u003cth style=\"width: 28%; padding: 12px; border-bottom: 1px solid #999; text-align: left;\"\u003eBrand \/ System\u003c\/th\u003e\n      \u003cth style=\"width: 27%; padding: 12px; border-bottom: 1px solid #999; text-align: left;\"\u003ePart Number\u003c\/th\u003e\n      \u003cth style=\"width: 45%; padding: 12px; border-bottom: 1px solid #999; text-align: left;\"\u003eNotes\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 12px; background: #f4f4f4; font-weight: bold; vertical-align: top;\"\u003eJohn Deere (OEM)\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003e\n\u003cstrong\u003eNS90340002\u003c\/strong\u003e, \u003cstrong\u003e5NS90340002\u003c\/strong\u003e\n\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003ePrimary OEM references for\u003cbr\u003e20\" x 6.5mm notched concave blade\u003cbr\u003eused on John Deere high-speed discs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 12px; font-weight: bold; vertical-align: top;\"\u003eNorwood\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003e\n        \u003cstrong\u003e90-34-0002\u003c\/strong\u003e, \u003cstrong\u003e18354A\u003c\/strong\u003e\u003cbr\u003e\n        \u003cstrong\u003e18199A\u003c\/strong\u003e, \u003cstrong\u003e19028A\u003c\/strong\u003e\n      \u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003eDirect replacement references\u003cbr\u003efor Kwik-Till applications\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 12px; font-weight: bold; vertical-align: top;\"\u003eDegelman\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003e\n\u003cstrong\u003e143557\u003c\/strong\u003e, \u003cstrong\u003e143568\u003c\/strong\u003e\n\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003eCommon replacement references\u003cbr\u003efor Pro-Till high-speed disc systems\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 12px; font-weight: bold; vertical-align: top;\"\u003eKinze\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003e\u003cstrong\u003eGD143553\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003eReferenced for Mach Till applications\u003cbr\u003eusing matching 20\" x 6.5mm\u003cbr\u003e4-bolt flat-center blade\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 12px; background: #f4f4f4; font-weight: bold; vertical-align: middle; text-align: left;\"\u003eAIC Tillage\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; background: #f4f4f4; vertical-align: middle; text-align: left;\"\u003e\u003cstrong\u003eAICT-0038\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; background: #f4f4f4; vertical-align: top;\"\u003e\n\u003cstrong\u003eAICT-0038\u003c\/strong\u003e is the listed AIC Tillage part\u003cbr\u003esold by AftermarketFARM.com,\u003cbr\u003equality-verified for reliable\u003cbr\u003efit, function, and field performance\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 12px; font-weight: bold; vertical-align: top;\"\u003eAftermarket\u003cbr\u003eCross Reference\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003e\n        \u003cstrong\u003eSH40002\u003c\/strong\u003e, \u003cstrong\u003eRLT126566C5\u003c\/strong\u003e, \u003cstrong\u003eB45-2746\u003c\/strong\u003e\u003cbr\u003e\n        \u003cstrong\u003e522-150-1040\u003c\/strong\u003e, \u003cstrong\u003e108112\u003c\/strong\u003e, \u003cstrong\u003e1002681\u003c\/strong\u003e\u003cbr\u003e\n        \u003cstrong\u003eOS-99920001\u003c\/strong\u003e, \u003cstrong\u003e20X6.5N10\u003c\/strong\u003e\n      \u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003e\n        Additional aftermarket part numbers shown\u003cbr\u003e\n        for cross-reference and identification purposes.\u003cbr\u003e\n        Manufacturing standards and quality may vary\u003cbr\u003e\n        by supplier. Verify blade diameter, thickness,\u003cbr\u003e\n        and mounting pattern before ordering\n      \u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"AIC Tillage","offers":[{"title":"Default Title","offer_id":52715642257700,"sku":"AICT-0038","price":74.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0948\/5683\/9460\/files\/aic-tillage-notched-concave-disc-blade-20x6-5mm-aict-0038.jpg?v=1774971377","url":"https:\/\/aftermarketfarm.com\/products\/aic-tillage-notched-concave-disc-blade-20x6-5mm-aict-0038","provider":"AftermarketFARM.com","version":"1.0","type":"link"}