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  Our Catalog   Hydraulics, Pneumatics & Plumbing   Seals & O-Rings   O-Rings

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


Extreame Savings Item! Save 47% on the Buna-N O-Ring Kit, 70A Durometer, 382 Pieces, 30 Sizes by Sterling Seal & Supply, Inc. (STCC) at In The National Interest. MPN: 650KIT70P. Hurry! Limited time offer. Offer valid only while supplies last. This O-Ring set is made of Black Buna-N, has a durometer of 70A, and includes 382 pieces covering 30 dash sizes. The rings have a Round cross-section


Product Description

This O-Ring set is made of Black 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 from -40 degrees F (-40 degrees C) to 212 degrees F (100 degrees C). The rings come in a plastic storage case designed for organization and portability. Designed for use in a variety of sealing applications, this Buna-N 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, 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.

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-N 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 rubber, 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 as well as Metric sizes. O-ring size is defined by the inside diameter (ID), outisde diameter (OD), and cross-sectional (CS) diameter.

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 with label to identify sizes
  • Features & Highlights

    • 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

    Additional Information

    Manufacturer:Sterling Seal
    Brand:Sterling Seal & Supply, Inc. (STCC)
    Color:Black
    Model:650KIT70P
    Part Number:650KIT70P
    Publisher:Sterling Seal
    Studio:Sterling Seal
    MPN:650KIT70P
    Item Weight:0.77 pounds
    Item Size:1.57 x 6.69 x 6.69 inches
    Package Weight:1.05 pounds
    Package Size:7.3 x 1.8 x 1.8 inches

    Buna-N O-Ring Kit, 70A Durometer, 382 Pieces, 30 Sizes by Sterling Seal & Supply, Inc. (STCC)

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

    Brand: Sterling Seal & Supply, Inc. (STCC)
    Condition: New
    Lead Time: 1 - 2 Business Days
    Availability: In Stock
    $22.12
    $11.80
    You Save: 47%


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