{"product_id":"value-collection-zmsch90345-nitrile-o-ring-dash-345-25-pack","title":"Value Collection ZMSCH90345 Nitrile O-ring Dash 345 25 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION ZMSCH90345 is a Dash 345 Buna-N (Nitrile Butadiene Rubber) O-ring rated for continuous service from -40 to 250 degrees F. It measures 4 inches inside diameter, 4.375 inches outside diameter, and 0.1875 inches (3\/16 inches) cross-section thickness. The compound carries a 90 durometer hardness rating, placing it in the extra-hard category for applications that demand firm sealing under compression. This O-ring is sold in a package of 25 units and is suited for installation by licensed plumbers, HVAC technicians, and fluid-system technicians working with petroleum-based media. It conforms to SAE and MIL-Spec standards.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is designed for use in systems that contact petroleum products, including hydraulic circuits, fuel handling assemblies, refrigeration service ports, and general fluid-sealing applications across residential and commercial environments. The Buna-N compound offers reliable performance in static and dynamic sealing configurations where exposure to petroleum-based oils, fuels, and greases is expected. The extended temperature range makes it suitable for both outdoor and mechanical-room installations where ambient and operating temperatures vary significantly.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBuna-N (Nitrile Butadiene Rubber) compound with excellent resistance to petroleum products\u003c\/li\u003e\n  \u003cli\u003e90 durometer extra-hard rating for high-compression sealing applications\u003c\/li\u003e\n  \u003cli\u003eOperating temperature range: -40 to 250 degrees F\u003c\/li\u003e\n  \u003cli\u003eRound cross-section, 0.1875 inches thick, Dash 345 standard sizing\u003c\/li\u003e\n  \u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n  \u003cli\u003ePackage quantity of 25 units; minimum order quantity of 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with systems and components that contact petroleum products, including hydraulic fluid, fuel, and petroleum-based oils. Not recommended for exposure to ozone, direct sunlight, or proximity to motors and other electrical equipment that may generate ozone. Not FDA approved.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by licensed plumbers, HVAC technicians, or fluid-system mechanics. Always depressurize and isolate the fluid circuit before replacing O-rings. Inspect the groove and mating surfaces for nicks, corrosion, or debris prior to seating the new O-ring. Avoid twisting the O-ring during installation and use a compatible lubricant approved for Buna-N compounds and the media present in the system.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: 345\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 4 inches (100.97 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 4.375 inches (111.12 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1875 inches (5.33 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 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: 25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.41 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: ZMSCH90345\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51706086326578,"sku":"ZMSCH90345","price":22.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e63e5be40384736fb1f090e4d0cdd585_70296308-2967-47bb-80fa-c7d3b1a51843.jpg?v=1788432600","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch90345-nitrile-o-ring-dash-345-25-pack","provider":"Voomi Supply","version":"1.0","type":"link"}