{"product_id":"value-collection-zmsch90212-o-ring-dash-212-nbr-90-duro-50pk","title":"Value Collection ZMSCH90212 O-ring Dash 212 Nbr 90 Duro 50pk","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH90212 is a Dash 212 Nitrile Butadiene Rubber (NBR\/Buna-N) O-ring sold in a pack of 50. It measures 0.875 inches inside diameter, 1.125 inches outside diameter, and 0.125 inches thick, with a round cross section and a 90 durometer (extra hard) hardness rating. The temperature range spans -40 to 250 degrees F, making it suitable for a wide variety of hydraulic, pneumatic, and mechanical sealing applications. HVAC technicians, plumbers, and mechanical contractors install this O-ring as a static or dynamic seal in systems where petroleum-based fluid compatibility is required.\u003c\/p\u003e\u003cp\u003eThis O-ring is well suited for use in petroleum-product environments, including hydraulic systems, fuel handling equipment, refrigeration service connections, and general fluid-power assemblies found in both residential and light commercial mechanical systems. The Buna-N compound is the most widely used O-ring elastomer in the trade, valued for its compression-set resistance and tear and abrasion resistance. The 50-piece pack quantity suits service technicians who carry common sealing sizes in quantity for repeated maintenance calls.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuna-N (NBR) compound with excellent resistance to petroleum products and hydraulic fluids\u003c\/li\u003e\n\u003cli\u003e90 durometer extra-hard rating resists extrusion in higher-pressure applications\u003c\/li\u003e\n\u003cli\u003eOperating temperature range of -40 to 250 degrees F for broad service compatibility\u003c\/li\u003e\n\u003cli\u003eRound cross section with consistent 0.125-inch thickness for reliable sealing contact\u003c\/li\u003e\n\u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n\u003cli\u003ePack of 50 units — practical quantity for field service or shop stock\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with petroleum products and petroleum-based hydraulic fluids. Designed as a Dash 212 standard O-ring for use in any port, fitting, or gland machined to the Dash 212 AS568 cross-section profile.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO-rings should be installed by a qualified technician familiar with the sealing requirements of the system being serviced. Always depressurize and de-energize the system before replacing seals. Lightly lubricate the O-ring with a compatible fluid or grease before installation to prevent twisting or tearing during assembly. Do not store unused O-rings in direct sunlight or near motors and other electrical equipment that may generate ozone, as this degrades the elastomer over time.\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: 212\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.875 inches (21.82 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 1.125 inches (28.57 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.125 inches (3.53 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 Durometer (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 Fluid\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: 50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.51 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: ZMSCH90212\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51717709889842,"sku":"ZMSCH90212","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e63e5be40384736fb1f090e4d0cdd585_ff2e8fdc-f13c-4230-b92c-74d683ed171c.jpg?v=1788544748","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch90212-o-ring-dash-212-nbr-90-duro-50pk","provider":"Voomi Supply","version":"1.0","type":"link"}