Monday, September 10, 2012

Buna-N O-Ring Kit, 70A Durometer, 382 Pieces, 30 Sizes


Brand : Small Parts

Model :650KIT70P

Post Date :Sep 10, 2012 04:21:03

^^^^ Usually ships in 24 hours ^^^^

This O-ring set is made of black Buna-nitrile (Buna-N), has a durometer of 70A, and includes 382 pieces covering 30 dash sizes. The rings have 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). The rings come in a plastic storage case designed for organization and portability. Designed for use in a variety of sealing applications, from valves to engines, this Buna-nitrile O-ring set meets standards defined by Aerospace Standard AS568A for quality assurance.

The set includes the following O-rings: 20 pieces each for dash sizes 006, 007, 008, 009, 010, 011, 012; 13 pieces each for dash sizes 110, 111, 112, 113, 114, 115, 116; 10 pieces each for dash sizes 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222; and seven pieces each for dash sizes 325, 326, and 327.

Buna-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.

The durometer hardness of this Buna O-ring is 70A. 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.

What's in the box?

  • 20 pieces each for dash sizes 006, 007, 008, 009, 010, 011, and 012
  • 13 pieces each for dash sizes 110, 111, 112, 113, 114, 115, and 116
  • 10 pieces each for dash sizes 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, and 222
  • 7 pieces each for dash sizes 325, 326, and 327
  • Plastic storage case

  • Made of Buna-nitrile (also called Buna-N) for use with a variety of fluids from petroleum to aliphatic hydrocarbons and has a durometer (hardness) of 70A for resistance to penetration
  • Includes 382 pieces for covering 30 dash sizes
  • For use across a wide temperature range from -30 degrees F/-34 degrees C to 250 degrees F/121 degrees C
  • Meets Aerospace Standard AS568A for quality assurance
  • Plastic case for portability and organized storage

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1 comment:

  1. Buna O-rings are the most common O-Rings on the market. Buna-N however is the least expensive O-Ring material on the market low temperature level applications"

    ReplyDelete