{"product_id":"5-pack-228-o-ring-for-sterling-seal-supply-buna-nitrile-seal-70a","title":"5 Pack 228 O-Ring for Sterling Seal \u0026 Supply, Buna-Nitrile Seal, 70A","description":"\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eProduct Specifications: This O-ring set includes 5 Buna-Nitrile seals with dimensions of 2-1\/4\" ID, 2-1\/2\" OD, and 1\/8\" width. these versatile rubber rings serve as reliable replacements for 2 inch O-ring and 2.5 inch O-ring applications across various industrial and mechanical uses. The round cross-section design ensures effective sealing between overlapping mating surfaces.\u003c\/li\u003e\n\u003cli\u003eMaterial Compatibility:​Made of Buna-Nitrile material with 70A durometer hardness, these O-rings perform effectively with petroleum-based oils, HFA\/HFB\/HFC fluids, vegetable oils, aliphatic hydrocarbons, silicone greases, ethylene glycol, dilute acids, and water below 100°C (212°F). Buna-nitrile is vulnerable to acetone, ethers, esters, ozone, sunlight and weathering and should therefore not be used in ozone-generating electric motors, welding equipment, or in applications with exposure to UV light.\u003c\/li\u003e\n\u003cli\u003eTemperature Resistance:​With a functional temperature range of -35°C (-31°F) to 120°C (248°F), these O-rings maintain flexibility and sealing integrity in both extreme cold and high-heat environments. The material offers high tensile strength and compression set resistance within this range. Suitable for automotive, hydraulic, and industrial equipment requiring reliable cross-section O-ring performance.\u003c\/li\u003e\n\u003cli\u003eVersatile Applications:​Designed for use in pumps, valves, connectors, engines, faucets, flanges, and machinery requiring durable sealing solutions. Compatible with 2 inch pool O-ring Craftsman applications and general industrial maintenance. Provides effective sealing as O2 ring alternatives in oxygen-related systems when material compatibility is confirmed. Avoid use in ozone-generating equipment or welding applications.\u003c\/li\u003e\n\u003cli\u003eQuality Assurance:​Manufactured to precise dimensional standards, these Buna-Nitrile O-rings offer consistent cross-section performance and reliable sealing force. The 70A durometer provides optimal balance between flexibility and compression resistance, ensuring long-term service life in demanding conditions. The circular shape with round cross-section ensures proper sealing in various cylindrical applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFree shipping included. 30-day hassle-free returns.\u003c\/p\u003e","brand":"Belmont Warehouse","offers":[{"title":"Default Title","offer_id":43357756326097,"sku":"BW-B0FVWXYRSP","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/3123\/5793\/files\/613p_2PvbL._SL1500.jpg?v=1790985916","url":"https:\/\/belmontwarehouse.com\/products\/5-pack-228-o-ring-for-sterling-seal-supply-buna-nitrile-seal-70a","provider":"Belmont Warehouse","version":"1.0","type":"link"}