{"product_id":"value-collection-zmsch90447-o-ring-dash-447-nitrile-90-duro","title":"Value Collection ZMSCH90447 O-ring Dash 447 Nitrile 90 Duro","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH90447 is a Dash 447 Buna-N (Nitrile Butadiene Rubber) O-ring designed for static and dynamic sealing applications in fluid and pneumatic systems. It measures 9 inches inside diameter by 9-1\/2 inches outside diameter with a 1\/4 inch cross-section thickness. Hardness is rated at 90 Shore A durometer, placing it in the extra-hard category for applications requiring minimal compression deflection. The temperature range spans -40 degrees F to 250 degrees F, making it suitable for a wide range of operating environments. Sold in packages of 5 per unit.\u003c\/p\u003e\u003cp\u003eBuna-N O-rings at this size and durometer rating are commonly installed in large-bore hydraulic cylinders, industrial pump housings, compressor end caps, valve bonnets, and similar assemblies found in commercial HVAC, refrigeration, plumbing, and industrial fluid-handling systems. The 90 durometer hardness is well suited for high-pressure applications where extrusion resistance is a priority. Petroleum-based fluids are the primary compatible media, including mineral oils, hydraulic fluids, and fuels.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuna-N (Nitrile Butadiene Rubber) construction — the most widely used O-ring elastomer for petroleum-product compatibility\u003c\/li\u003e\n\u003cli\u003e90 Shore A durometer rating provides extra-hard compression set and extrusion resistance in high-pressure seating\u003c\/li\u003e\n\u003cli\u003eOperating range of -40 degrees F to 250 degrees F suits a broad range of commercial and industrial service conditions\u003c\/li\u003e\n\u003cli\u003eExcellent tear and abrasion resistance for dynamic sealing applications subject to movement or vibration\u003c\/li\u003e\n\u003cli\u003eMeets SAE and MIL-Spec standards for dimensional and material compliance\u003c\/li\u003e\n\u003cli\u003ePackage quantity of 5 units per order supports service stock and repeat installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with petroleum products including mineral oils, hydraulic fluids, and fuel media. Designed to meet SAE and MIL-Spec dimensional standards for Dash 447 O-rings. Not FDA approved — not intended for food, beverage, or pharmaceutical contact applications. Should not be stored in direct sunlight or near motors or electrical equipment that may generate ozone.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO-ring installation should be performed by a qualified mechanic, plumber, or fluid-systems technician. De-energize and depressurize the system fully before breaking any seal or fitting. Inspect the gland and mating surfaces for scoring or corrosion prior to installation, and lightly lubricate the O-ring with a compatible fluid to prevent rolling or twisting during assembly. Avoid using sharp tools that may nick or cut the elastomer during seating.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Buna-N (Nitrile Butadiene Rubber)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 447\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 9 inches (9.0000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 9-1\/2 inches (9.5000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 1\/4 inch (0.2500 inches \/ 6.99 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 90 Shore A (Extra Hard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: -40 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 250 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Media\u003c\/strong\u003e: Petroleum Products\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: SAE, MIL-Spec\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFDA Approved\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.72 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ZMSCH90447\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51714584609074,"sku":"ZMSCH90447","price":20.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/98ca427a86d2e8887930d788ab1ea9ee.jpg?v=1788503491","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch90447-o-ring-dash-447-nitrile-90-duro","provider":"Voomi Supply","version":"1.0","type":"link"}