{"product_id":"aic-tillage-plain-concave-disc-blade-20x6-5mm-aict-0037","title":"AIC Tillage | Plain Concave Disc Blade | 20\" x 6.5mm | Replaces John Deere NS90340003 | AICT-0037","description":"\u003cp\u003e\u003cstrong\u003eAIC Tillage AICT-0037 |\u003c\/strong\u003e \u003cstrong\u003e20\" x 6.5mm plain 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 NS90340003\u003c\/strong\u003e for high-speed tillage, shallow tillage, and vertical tillage applications.\u003c\/p\u003e\n\n\u003cp\u003eThis \u003cstrong\u003eheavy-duty plain concave disc blade\u003c\/strong\u003e is designed for effective \u003cstrong\u003esoil movement\u003c\/strong\u003e, \u003cstrong\u003efield finishing\u003c\/strong\u003e, and \u003cstrong\u003eseedbed preparation\u003c\/strong\u003e in demanding field conditions. The \u003cstrong\u003econcave profile\u003c\/strong\u003e helps lift and flow soil smoothly, while the \u003cstrong\u003eplain edge\u003c\/strong\u003e supports uniform tillage action and a cleaner finish in lighter to moderate residue conditions.\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\u003ehigh-residue tillage tools\u003c\/strong\u003e where durability, smooth soil flow, and reliable 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 plain concave blades?\u003c\/strong\u003e\u003cbr\u003e\nThe \u003cstrong\u003econcave blade profile\u003c\/strong\u003e helps lift and move soil efficiently for smooth finishing and seedbed preparation, while the \u003cstrong\u003eplain edge\u003c\/strong\u003e maintains steady ground contact for even tillage performance with less aggressive residue cutting than a notched blade.\u003c\/h4\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility \u0026amp; Application Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUsed on \u003cstrong\u003ehigh-speed tillage\u003c\/strong\u003e, \u003cstrong\u003eshallow tillage\u003c\/strong\u003e, and \u003cstrong\u003evertical tillage\u003c\/strong\u003e equipment requiring a \u003cstrong\u003e20\" x 6.5mm\u003c\/strong\u003e plain concave blade.\u003c\/li\u003e\n\u003cli\u003eCommon fit for machines from multiple manufacturers when matching dimensions and \u003cstrong\u003e4-bolt flat-center mounting\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAlways verify blade diameter, thickness, bolt 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-0037\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\u003eNS90340003\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e5NS90340003\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\u003ePlain 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 - (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 - (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-bolt mount\u003cbr\u003efor compatible flat-center\u003cbr\u003ehigh-speed tillage applications\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\u003eshallow tillage, and 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\u003cbr\u003e\n        High-Performance Disc\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, HSD4500\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        302, 362, 412\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\u003eOther Applications\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #ddd;\"\u003e\n        Various high-speed shallow tillage\u003cbr\u003e\n        and vertical tillage implements requiring\u003cbr\u003e\n        a 20\" plain concave 4-bolt disc blade\n      \u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\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\u003eNS90340003\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e5NS90340003\u003c\/strong\u003e\n\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003ePrimary OEM references for\u003cbr\u003e20\" x 6.5mm plain 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\u003e90-34-0003\u003c\/strong\u003e\u003cbr\u003e\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\u003e143556\u003c\/strong\u003e, \u003cstrong\u003e143567\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;\"\u003eBTT \/ Niaux\u003cbr\u003e200 Series\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003e\u003cstrong\u003e522-200-1000\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003eCatalog cross for John Deere\u003cbr\u003e2680H and Norwood Kwik-Till\u003cbr\u003e20\" x 6.5mm plain concave 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-0037\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; background: #f4f4f4; vertical-align: top;\"\u003e\n\u003cstrong\u003eAICT-0037\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\u003eRLTS126054\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e1002701\u003c\/strong\u003e\n\u003c\/td\u003e\n      \u003ctd style=\"padding: 12px; vertical-align: top;\"\u003e\n        Verified aftermarket part numbers shown for\u003cbr\u003e\n        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":52715324342564,"sku":"AICT-0037","price":71.15,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0948\/5683\/9460\/files\/aic-tillage-plain-concave-disc-blade-20x6-5mm-aict-0037.jpg?v=1774968316","url":"https:\/\/aftermarketfarm.com\/fr\/products\/aic-tillage-plain-concave-disc-blade-20x6-5mm-aict-0037","provider":"AftermarketFARM.com","version":"1.0","type":"link"}