{"product_id":"value-collection-zmsch90155-o-ring-dash-155-nbr-pack-25","title":"Value Collection ZMSCH90155 O-ring Dash 155 Nbr Pack 25","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH90155 is a Dash 155 nitrile butadiene rubber (Buna-N) O-ring designed for static and dynamic sealing applications across plumbing, hydraulic, pneumatic, and fluid-handling systems. It measures 4 inches inside diameter, 4.188 inches outside diameter, and 0.103 inches thick with a round cross section. Durometer hardness is rated at 90 Shore A, placing it in the extra-hard category for applications requiring firm sealing under pressure. The material offers excellent resistance to petroleum-based fluids, making it a standard choice for fuel, oil, and hydraulic service. Each package contains 25 pieces.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for use in residential and commercial systems where petroleum-based media contact is expected, including hydraulic cylinders, fuel lines, pumps, valves, and fittings. Its Buna-N compound performs across a wide temperature range, from -40 degrees F to 250 degrees F, supporting installations in both cold-environment and moderate-heat applications. Plumbers, hydraulic technicians, and equipment service professionals are the typical installers. The Dash 155 sizing is a recognized standard designation used across OEM and aftermarket service scenarios.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuna-N (nitrile butadiene rubber) compound with excellent resistance to petroleum products, oils, and fuels\u003c\/li\u003e\n\u003cli\u003e90 Shore A durometer hardness — extra-hard rating for firm, reliable sealing under load\u003c\/li\u003e\n\u003cli\u003eWide service temperature range: -40 degrees F to 250 degrees F\u003c\/li\u003e\n\u003cli\u003eRound cross section; 4 inches ID, 4.188 inches OD, 0.103 inches thick\u003c\/li\u003e\n\u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n\u003cli\u003eGood tear and abrasion resistance with excellent compression set characteristics\u003c\/li\u003e\n\u003cli\u003eSold in a package quantity of 25 pieces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or service O-ring for hydraulic, pneumatic, plumbing, and fluid-handling equipment that specifies a Dash 155 Buna-N seal. Compatible with petroleum-based products and media. Not FDA approved; not intended for food-contact applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by licensed plumbers, hydraulic technicians, or equipment service professionals. De-pressurize and lock out the system before removing any seals or fittings. Inspect the gland or groove for damage, debris, or out-of-tolerance dimensions before seating the new O-ring. Avoid storing unused O-rings in direct sunlight or near motors and other electrical equipment that may generate ozone, as this degrades nitrile rubber 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: 155\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 4 inches (101.27 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 4.188 inches (106.37 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.103 inches (2.62 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 Shore A (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\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Media\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: 25 pieces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.14 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: ZMSCH90155\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51702859399474,"sku":"ZMSCH90155","price":15.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e63e5be40384736fb1f090e4d0cdd585_4666341a-cffe-48d2-b94e-3b77542a5cd1.jpg?v=1788413575","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch90155-o-ring-dash-155-nbr-pack-25","provider":"Voomi Supply","version":"1.0","type":"link"}