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Viton O-Ring, 75A Durometer, Round, Black (Metric)

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Product Specifications
Nominal Width
n/a  millimeters
Material Type
Color Name
Nominal ID
n/a  millimeters
Brand Name
Small Parts
Dash Size
Upper Temperature Range
400  Degrees Fahrenheit
Cross Section Shape
75 A Durometer
Nominal OD
n/a  millimeters
LowerTemperature Range
-40  Degrees Fahrenheit
System of Measurement

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1.5 mm 3.5 mm 1 mm 25 B005RUOX3I yes $7.56 Buy Options
2 mm 4 mm 1 mm 25 B005RUOXO2 yes $6.18 Buy Options
2.5 mm 4.5 mm 1 mm 25 B005RUOYB4 yes $8.40 Buy Options
3 mm 5 mm 1 mm 25 B005RUOYKK yes $6.08 Buy Options
4 mm 6 mm 1 mm 25 B005RUOZ2C yes $7.89 Buy Options
5 mm 7 mm 1 mm 25 B005RUOZDQ yes $3.26 Buy Options
6 mm 8 mm 1 mm 50 B005RUOZOU yes $12.39 Buy Options
7 mm 9 mm 1 mm 25 B005RUP06M yes $6.45 Buy Options
8 mm 10 mm 1 mm 25 B005RUP0OE yes $5.74 Buy Options
9 mm 11 mm 1 mm 25 B005RUP15W yes $7.65 Buy Options
10 mm 12 mm 1 mm 25 B005RUP1NE yes $7.54 Buy Options
11 mm 13 mm 1 mm 25 B005RUP2A6 yes $7.06 Buy Options
12 mm 14 mm 1 mm 25 B005RUP2Q0 yes $7.88 Buy Options
13 mm 15 mm 1 mm 25 B005RUP3HS yes $9.11 Buy Options
14 mm 16 mm 1 mm 10 B005RUP3XM yes $4.72 Buy Options
15 mm 17 mm 1 mm 25 B005RUP4DQ yes $7.93 Buy Options
16 mm 18 mm 1 mm 10 B005RUP4UY yes $5.12 Buy Options
17 mm 19 mm 1 mm 25 B005RUP5HG yes $13.33 Buy Options
18 mm 20 mm 1 mm 25 B005RUP5SA yes $14.49 Buy Options
19 mm 21 mm 1 mm 25 B005RUP63Y yes $10.88 Buy Options

Key Features

  • Metric O-ring made of Viton (fluorocarbon elastomer) for use with a variety of chemicals and fuels
  • Durometer (hardness) of 75A for resistance to penetration
  • Round cross-section provides a seal between cylindrical overlapping surfaces
  • For use across a wide temperature range from -15 degrees F/-26 degrees C to 400 degrees F/205 degrees C
  • Meets standards defined by Aerospace Standard AS568A

Product Description

This metric O-ring is made of black Viton and has a durometer of 75A, a round cross-section, and can be used across a wide temperature range (-15 degrees F/-26 degrees C to 400 degrees F/205 degrees C). Designed for use in a wide variety of sealing applications, this Viton O-ring meets standards defined by Aerospace Standard AS568A, which is the Aerospace Size Standard for O-rings.

Viton (fluorocarbon elastomer) has heat, fuel, and chemical resistance and is compatible for use with non-flammable hydraulic fuels, silicone oil, chlorinated hydrocarbons (trichlorethylene), aromatic hydrocarbons (benzene) and aliphatic hydrocarbons (propane). It works well in high vacuum environments and is vulnerable to low molecular organic acids, ammonia gas, alkalis, amines, glycol-based brake fluids, and super-heated steam.

The durometer hardness of this Viton O-ring is 75A. 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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