{"product_id":"135-buna-n-o-ring-50a-durometer-round-black-1-15-16-id-2-1-8-od-3-32-width-pack-of-20","title":"135 Buna-N O-Ring, 50A Durometer, Round, Black, 1-15\/16\" ID, 2-1\/8\" OD, 3\/32\" Width (Pack of 20)","description":"\u003cp\u003e\u003cb\u003eBrand:\u003c\/b\u003e Lamons\u003c\/p\u003e\u003cp\u003e\u003cb\u003eColor:\u003c\/b\u003e Black\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMade of Buna-nitrile (also called Buna-N) for use with a variety of fluids from petroleum to aliphatic hydrocarbons\u003c\/li\u003e\n\u003cli\u003eDurometer (hardness) of 50A for resistance to penetration\u003c\/li\u003e\n\u003cli\u003eRound cross-section to provide a seal between cylindrical overlapping surfaces\u003c\/li\u003e\n\u003cli\u003eFor use across a wide temperature range from -30 degrees F\/-34 degrees C to 250 degrees F\/121 degrees C\u003c\/li\u003e\n\u003cli\u003eMeets standards defined by Aerospace Standard AS568A\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eDetails:\u003c\/b\u003e This O-ring is made of black Buna-nitrile (Buna-N) and has a durometer of 50A. It has a round cross-section and can be used across a wide temperature range (-30 degrees F\/-34 degrees C to 250 degrees F\/121 degrees C). Designed for use in a wide variety of sealing applications, this Buna-nitrile O-ring meet standards defined by Aerospace Standard AS568A, which is the Aerospace Size Standard for O-rings.\u003cbr\u003e\nBuna-nitrile can have high tensile strength, as well as abrasion, tear, and compression set resistance. It is compatible for use with petroleum, hexafluoroacetone (HFA), hexafluoro-2-butyne (HFB) and hydrofluorocarbon (HFC) fluids, vegetable oil, alcohol, acids, and aliphatic hydrocarbons. Buna-nitrile is vulnerable to acetone, ethers, esters, ozone, sunlight and weathering, and should not be used in ozone-generating electric motors, welding equipment, or in applications with exposure to UV light.\u003cbr\u003e\nThe durometer hardness of this Buna O-ring is 50A. Durometers measure 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, a value of 0 indicates that a sample was completely penetrated, while a value of 100 shows no indentation in the sample. The letter following the number identifies the shore scale, which is either shore A or D. Shore A is used for softer plastics, while shore D is used for harder plastics.\u003cbr\u003e\nO-rings 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 a round cross section, and a hole in the center, similar to a doughnut. O-rings are available in various AS568A dash sizes, which is the standardized sizing for O-rings, and defines the nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter of an O-ring.\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePackage Dimensions:\u003c\/b\u003e 5.7 x 4.2 x 0.8 inches\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePart Number:\u003c\/b\u003e 135-7450\u003c\/p\u003e\u003cp\u003e\u003cb\u003emodel number:\u003c\/b\u003e 135\u003c\/p\u003e","brand":"Lamons","offers":[{"title":"Default Title","offer_id":41799512490093,"sku":"B0051XX4G8","price":8.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/5563\/8893\/files\/61LvuiWVBvL.jpg?v=1724863001","url":"https:\/\/zomdo.com\/products\/135-buna-n-o-ring-50a-durometer-round-black-1-15-16-id-2-1-8-od-3-32-width-pack-of-20","provider":"Zomdo Marketplace | Zomdo.com","version":"1.0","type":"link"}