{"product_id":"value-collection-zmsch70426-o-ring-dash-426-nitrile-pack-of-5","title":"Value Collection ZMSCH70426 O-ring Dash 426 Nitrile Pack of 5","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCH70426 is a Dash 426 Buna-N (nitrile butadiene rubber) O-ring with a round cross section, sold in a pack of 5. It measures 4.625 inches inside diameter, 5.125 inches outside diameter, and 0.25 inches thick, with a Shore A hardness of 70. Buna-N is the most widely used O-ring elastomer in trade applications, offering strong resistance to petroleum-based fluids, good compression set characteristics, and solid tear and abrasion resistance. Licensed plumbers, HVAC technicians, and industrial maintenance mechanics install this type of seal in hydraulic, pneumatic, and fluid-handling systems.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is suited for static and dynamic sealing applications involving petroleum products, oils, and fuels across plumbing, HVAC, and general industrial systems. It performs across a wide temperature range of -40 degrees F to 250 degrees F, making it appropriate for both refrigeration-adjacent and moderate-heat service environments. The black Buna-N compound meets SAE and MIL-Spec standards, covering a broad range of residential and commercial service scenarios. Each pack contains 5 rings for stocking convenience.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBuna-N (NBR) compound with excellent resistance to petroleum products, oils, and fuels\u003c\/li\u003e\n  \u003cli\u003e70 Shore A hardness rating for firm, reliable sealing under compression\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range: -40 degrees F to 250 degrees F\u003c\/li\u003e\n  \u003cli\u003eRound cross section, 0.25 inches thick, conforming to Dash 426 sizing standard\u003c\/li\u003e\n  \u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n  \u003cli\u003eSold in a pack of 5 units to support stocking and serviceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with petroleum products, oils, and fuels; suitable for use in static and dynamic sealing applications across hydraulic, pneumatic, and fluid-handling equipment where Buna-N elastomer and Dash 426 sizing are specified. Not recommended for use with ozone-generating equipment or in direct sunlight storage conditions.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003ePlumbers, HVAC technicians, and industrial mechanics install O-rings of this type as part of valve, fitting, pump, or manifold assemblies. Always depressurize and isolate the system before removing or installing seals. Inspect the mating groove for burrs, scoring, or debris before seating the ring. Avoid storing Buna-N O-rings near motors, electrical equipment, or direct sunlight, as ozone exposure degrades the elastomer.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 4.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 5.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 426\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: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: ZMSCH70426\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51701853880626,"sku":"ZMSCH70426","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9d9f2f3c830b0bfa804bcf3fe18f3832.jpg?v=1788406043","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70426-o-ring-dash-426-nitrile-pack-of-5","provider":"Voomi Supply","version":"1.0","type":"link"}