{"product_id":"value-collection-zmsch70258-o-ring-dash-258-buna-n-10-pack","title":"Value Collection ZMSCH70258 O-ring Dash 258 Buna-n 10-pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCH70258 is a Dash 258 Nitrile Butadiene Rubber (Buna-N) O-ring sized at 6 inches inside diameter, 6.25 inches outside diameter, and 0.125 inches thick with a round cross section. Buna-N is the most widely used O-ring elastomer in trade and industrial applications, offering excellent resistance to petroleum-based fluids, strong compression set recovery, and solid tear and abrasion resistance. Rated at 70 Shore A hardness, this O-ring is suited for use in systems that demand a reliable, chemically compatible static or dynamic seal. Plumbers, HVAC technicians, and mechanical service professionals specify Buna-N seals for a wide range of fluid-handling assemblies.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is appropriate for residential and commercial applications involving petroleum products, hydraulic fluids, and general-purpose fluid sealing. It is commonly installed in pipe flanges, valve bodies, pump housings, and similar assemblies where a dependable elastomeric seal is required. The working temperature range spans -40 degrees F to 250 degrees F, covering most standard mechanical and HVAC system operating conditions. Each package contains 10 O-rings, making it practical to stock spares for routine maintenance calls.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBuna-N (Nitrile Butadiene Rubber) construction with excellent petroleum product resistance\u003c\/li\u003e\n  \u003cli\u003e70 Shore A durometer hardness rated Hard for positive sealing under compression\u003c\/li\u003e\n  \u003cli\u003eRound cross section, Dash 258 standard sizing for straightforward replacement sourcing\u003c\/li\u003e\n  \u003cli\u003eWorking temperature range: -40 degrees F to 250 degrees F\u003c\/li\u003e\n  \u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n  \u003cli\u003ePackaged in quantities of 10 to support stocking and repeat service calls\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with petroleum products and petroleum-based fluid systems. Designed as an OEM-style Dash 258 replacement O-ring for any application requiring a 6 inch ID, 6.25 inch OD, 0.125 inch thick Buna-N seal. Should not be used in contact with ozone-generating sources, direct sunlight exposure during storage, or near motors and electrical equipment that produce ozone.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by licensed plumbers, HVAC technicians, or mechanical service professionals. Always shut off fluid supply and relieve system pressure completely before removing or seating any O-ring seal. Inspect the groove and mating surfaces for burrs or debris before installation; a clean, undamaged groove is critical to achieving a proper seal. Apply a compatible lubricant to ease installation and avoid twisting or rolling the O-ring during seating.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 6.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 258\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Buna-N (Nitrile Butadiene Rubber)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 70 Shore A (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\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: 10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\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: ZMSCH70258\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51701661630770,"sku":"ZMSCH70258","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4040ae0d43fea28e669d76977dfa59b2.jpg?v=1788403320","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70258-o-ring-dash-258-buna-n-10-pack","provider":"Voomi Supply","version":"1.0","type":"link"}