{"product_id":"156-buna-o-ring-70a-durometer-black-4-1-4-id-4-7-16-od-3-32-width-pack-of-10","title":"156 Buna O-Ring, 70A Durometer, Black, 4-1\/4\" ID, 4-7\/16\" OD, 3\/32\" Width (Pack of 10)","description":"\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMade of Buna-nitrile (also called Buna-N) for use with a variety of fluids and hydrocarbons\u003c\/li\u003e\n\u003cli\u003eCan be used across a wide temperature range from -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C)\u003c\/li\u003e\n\u003cli\u003eRound in cross-section to provide a seal between cylindrical overlapping surfaces\u003c\/li\u003e\n\u003cli\u003eDurometer (hardness) of 70A for resistance to penetration\u003c\/li\u003e\n\u003cli\u003eMeets standards defined by Aerospace Standard AS568A\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis O-ring is made of black Buna-nitrile, is round in cross-section, has a durometer of 70A, and is designed for use in a wide variety of sealing applications.\nBuna-nitrile can have high tensile strength, and abrasion, tear, and compression set resistance. It can be used in temperatures between -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C), and is compatible for use with petroleum, HFA, HFB and HFC fluids, vegetable oil, alcohol, acids and aliphatic hydrocarbons. 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.\nThis Buna O-ring has a shore durometer of 70A. Shore durometer is the hardness of a material, and its resistance to permanent indentation. A higher durometer value indicates greater resistance to indentation on a scale of 0 to 100, with 100 indicating no indentation.\nO-rings commonly provide a pressure and fluid seal between cylindrically shaped, overlapping mating surfaces and are commonly seen in engines, faucets, flanges, valves, and various cylinders. They are circular in shape, with \u003c\/p\u003e\u003cp\u003eFree shipping on orders $50+. 30-day hassle-free returns.\u003c\/p\u003e","brand":"Belmont Warehouse","offers":[{"title":"Default Title","offer_id":43384515166417,"sku":"BW-B000FN0UX4","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/3123\/5793\/files\/81VuBT35OeL_93b4c150-7327-4b2c-8995-f0641fd65991.jpg?v=1791876102","url":"https:\/\/belmontwarehouse.com\/products\/156-buna-o-ring-70a-durometer-black-4-1-4-id-4-7-16-od-3-32-width-pack-of-10","provider":"Belmont Warehouse","version":"1.0","type":"link"}