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Kalrez Perfluoroelastomer O-Ring, 4079 Compound, 75A Durometer, Round, Black

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Product Specifications
Color Name
Black
Material Type
Kalrez Perfluoroelastomer - 4079
Brand Name
Small Parts
Cross Section Shape
Round
Upper Temperature Range
600  Degrees Fahrenheit
Hardness
75 A Durometer
UNSPSC Code
31410000
System of Measurement
Inch
LowerTemperature Range
32  Degrees Fahrenheit

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Currently showing 1-20 of 368 Next 20 »
001 0.029 inches 3/32 inches 0.04 inches 0.029 inches 3/32 inches 0.04 inches 1 B0056IQ18Q yes $29.45 Buy Options
002 0.042 inches 9/64 inches 0.05 inches 0.042 inches 9/64 inches 0.05 inches 1 B0056IRCEI Usually ships in 24 hours $30.17 Buy Options
003 0.056 inches 3/16 inches 0.06 inches 0.056 inches 3/16 inches 0.06 inches 1 B0056IREYQ Usually ships in 24 hours $26.86 Buy Options
004 0.07 inches 13/64 inches 0.07 inches 0.07 inches 13/64 inches 0.07 inches 1 B0056IRHMA yes $8.93 Buy Options
005 0.101 inches 7/32 inches 0.07 inches 0.101 inches 7/32 inches 0.07 inches 1 B0056IRLM6 yes $25.28 Buy Options
006 0.114 inches 1/4 inches 0.07 inches 0.114 inches 1/4 inches 0.07 inches 1 B0056IRODM yes $24.99 Buy Options
007 0.145 inches 9/32 inches 0.07 inches 0.145 inches 9/32 inches 0.07 inches 1 B0056IRRRK Usually ships in 24 hours $24.99 Buy Options
008 0.176 inches 5/16 inches 0.07 inches 0.176 inches 5/16 inches 0.07 inches 1 B0056IRU9A yes $8.80 Buy Options
009 0.208 inches 11/32 inches 0.07 inches 0.208 inches 11/32 inches 0.07 inches 1 B0056IRWN4 yes $8.93 Buy Options
010 0.239 inches 3/8 inches 0.07 inches 0.239 inches 3/8 inches 0.07 inches 1 B0056IRZVI yes $27.45 Buy Options
011 0.301 inches 7/16 inches 0.07 inches 0.301 inches 7/16 inches 0.07 inches 1 B0056IS300 yes $28.37 Buy Options
012 0.364 inches 1/2 inches 0.07 inches 0.364 inches 1/2 inches 0.07 inches 1 B0056IS6NY yes $29.45 Buy Options
013 0.426 inches 9/16 inches 0.07 inches 0.426 inches 9/16 inches 0.07 inches 1 B0056IS972 yes $29.61 Buy Options
014 0.489 inches 5/8 inches 0.07 inches 0.489 inches 5/8 inches 0.07 inches 1 B0056ISC3I yes $30.05 Buy Options
015 0.551 inches 11/16 inches 0.07 inches 0.551 inches 11/16 inches 0.07 inches 1 B0056ISEL8 yes $30.82 Buy Options
016 0.614 inches 3/4 inches 0.07 inches 0.614 inches 3/4 inches 0.07 inches 1 B0056ISGLG yes $32.52 Buy Options
017 0.676 inches 13/16 inches 0.07 inches 0.676 inches 13/16 inches 0.07 inches 1 B0056ISJFO yes $33.61 Buy Options
018 0.739 inches 7/8 inches 0.07 inches 0.739 inches 7/8 inches 0.07 inches 1 B0056ISM9W yes $34.68 Buy Options
019 0.801 inches 15/16 inches 0.07 inches 0.801 inches 15/16 inches 0.07 inches 1 B0056ISPC6 yes $38.31 Buy Options
020 0.864 inches 1 inches 0.07 inches 0.864 inches 1 inches 0.07 inches 1 B0056ISRDI yes $40.73 Buy Options

Key Features

  • Made of Kalrez 4079 (perfluoroelastomer) for use with a variety of chemicals and fuels
  • Durometer (hardness) of 75A for resistance to penetration
  • Round cross-section to provide a seal between cylindrical overlapping surfaces
  • For use across a wide temperature range from 32 degrees F/0 degrees C to 600 degrees F/316 degrees C
  • Meets standards defined by Aerospace Standard AS568A

Product Description

This O-ring is made of black Kalrez 4079 (perfluoroelastomer) and has a durometer of 75A. It has a round cross-section and can be used across a wide temperature range (from 32 degrees F/0 degrees C to 600 degrees F/316 degrees C). Designed for use in a wide variety of sealing applications, this Kalrez O-ring meet standards defined by Aerospace Standard AS568A, which is the Aerospace Size Standard for O-rings.

Kalrez 4079 (perfluoroelastomer) has a low compression set and high resistance to many reactive gases, plasmas, alkalis, acids and solvents. It performs well in mechanical applications, under temperature cycling, and exhibits low swell in acids, and aldehydes. Kalrez 4079 is vulnerable to super-heated steam and molten or gaseous alkali metals. DuPont manufactures Kalrez in facilities that are ISO 9000 and AS 9100 registered for quality assurance.

The durometer hardness of this Kalrez 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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