{"product_id":"value-collection-zmsch70md021-o-ring-dash-021-nbr-25-pack","title":"Value Collection ZMSCH70MD021 O-ring Dash 021 Nbr 25-pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCH70MD021 is a Dash 021 nitrile butadiene rubber (NBR) O-ring with a 15\/16-inch inner diameter, 1-1\/16-inch outer diameter, and 1\/16-inch thickness. It features a round cross section and a Shore A hardness of 70, placing it in the hard hardness range. NBR is the most widely used O-ring elastomer in trade applications, offering excellent resistance to petroleum-based fluids, strong compression set performance, and solid tear and abrasion resistance. This O-ring is sold in a package of 25 units. It is installed by plumbers, HVAC technicians, and industrial mechanics wherever a reliable fluid seal is required in petroleum-compatible systems.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is suited for use in hydraulic systems, pneumatic assemblies, fuel handling equipment, and general plumbing connections where petroleum-based fluids or lubricants are present. The Dash 021 sizing is a standard AS568 dimension, making it a common replacement or stocking item in service van inventories. The operating temperature range of -40 degrees F to 250 degrees F covers most residential and light commercial HVAC, plumbing, and fluid-power applications. NBR O-rings of this grade are used in valve stems, pump housings, fittings, and compression fittings across a wide range of equipment types.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNitrile butadiene rubber construction provides excellent resistance to petroleum products, oils, and fuels\u003c\/li\u003e\n  \u003cli\u003eShore A hardness of 70 delivers reliable compression set and long seal life under sustained clamping loads\u003c\/li\u003e\n  \u003cli\u003eRound cross section conforms to standard O-ring groove geometries for straightforward installation\u003c\/li\u003e\n  \u003cli\u003eOperating range of -40 degrees F to 250 degrees F covers a broad range of service conditions\u003c\/li\u003e\n  \u003cli\u003eShould not be stored in direct sunlight or near motors and electrical equipment that may generate ozone\u003c\/li\u003e\n  \u003cli\u003eSold in a pack of 25 for shop stocking and repeat-service applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard Dash 021 AS568-dimension O-ring for use in any application requiring a 15\/16-inch ID seal in equipment compatible with nitrile butadiene rubber and petroleum-based fluids. Not FDA approved for direct food-contact applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed plumber, HVAC technician, or hydraulic system mechanic. Always depressurize and isolate the system before replacing an O-ring seal. Lightly lubricate the O-ring with a compatible petroleum-based or system-fluid lubricant before seating it in the groove to prevent nicking or rolling during assembly. Avoid using sharp tools that could cut or deform the cross section during installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Nitrile Butadiene Rubber (NBR)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 021\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInner Diameter\u003c\/strong\u003e: 15\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 1.0620 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.0625 inches (1\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShore A Hardness\u003c\/strong\u003e: 70 (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 Fluids\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\u003eFDA Approved\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.234 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31401503\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ZMSCH70MD021\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51689539207474,"sku":"ZMSCH70MD021","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4e328ae5008b5c3c3ff857d220e0c3af.jpg?v=1788260987","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70md021-o-ring-dash-021-nbr-25-pack","provider":"Voomi Supply","version":"1.0","type":"link"}