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  • 004 Buna-N O-Ring, 90A Durometer, Round, Black, 5/64" ID, 13/64" OD, 1/16" Width (Pack of 100)
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    From $3.41 (New)

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Buy from Amazon $10.52$1.50 $12.50 $9.38 $6.25 $3.13 $0.00 Apr Jul Oct Jan Apr Jul Oct Jan Apr 2014 2015 2016 $1.46, Jan 31 - Feb 5$1.51, Feb 6 - Feb 13$1.50, Feb 13 - Feb 22$4.19, Feb 23 - Mar 16$4.34, Mar 17 - Apr 5$4.23, Apr 6 - Apr 14$3.74, Apr 15 - May 12$3.78, May 13 - May 26$3.84, May 26 - Jun 4$9.62, Jun 5 - Jun 14$9.61, Jun 15 - Jul 3$10.52, Jul 4 - Jul 17$4.73, Jul 19 - Aug 8$4.56, Aug 9 - Aug 21$4.40, Aug 22 - Sep 28$3.77, Sep 30 - Oct 4$3.62, Oct 5 - Nov 13$3.27, Nov 16 - Jan 12$3.50, Jan 12 - Mar 9$3.37, Mar 10 - Mar 25$3.53, Mar 26 - Apr 23$3.48, Apr 26 - May 4$3.43, May 6 - May 17$3.38, May 19 - Jun 1$3.36, Jun 3 - Jul 27$3.83, Jul 29 - Jul 30$2.87, Aug 1 - Aug 15$2.89, Aug 17 - Sep 7$3.18, Sep 9 - Sep 17$3.05, Sep 19 - Sep 27$5.59, Sep 29 - Oct 11$6.00, Oct 13 - Oct 27$6.23, Oct 29 - Nov 13$6.09, Nov 15 - Nov 26$6.23, Nov 28 - Dec 11$6.16, Dec 13 - Dec 21$6.76, Dec 23 - Jan 5$6.89, Jan 8 - Jan 18$6.73, Jan 20 - Feb 5$6.15, Feb 7 - Feb 15$3.61, Feb 18 - Feb 29$3.41, Mar 13 - Mar 31 5,425252,022 312,500 156,250 78,125 Oct Dec Feb Apr Jun Aug Oct Dec Feb Apr 2015 2016

Price Details

New

Latest $3.41 12 hrs ago
Highest $10.52 Jul 4, '14
Lowest $1.46 Jan 31, '14
Average $3.41 (30d avg)
$5.19 (90d avg)
$5.66 (180d avg)
$4.47 (365d avg)
$4.39 (Lifetime average)
Added Jan 31, 2014

Sales Rank

30 day average: 184,457
90 day average: 190,334

Product Description

This O-ring is made of black Buna-nitrile (Buna-N) and has a durometer of 90A. 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. Buna-nitrile can have high tensile strength, and has 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. The durometer hardness of this Buna O-ring is 90A. 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. O-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.

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