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  • Fluorosilicone O-Ring, 70A Durometer, Round, Blue
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Fluorosilicone O-Ring, 70A Durometer, Round, Blue

Available in multiple versions

7 customer reviews

Price: $2.59 - $116.93
Product Specifications
Brand Name Small Parts
Material Type Fluorosilicone
Hardness 70 A Durometer
System of Measurement Inch
Color Blue
Cross Section Shape Round
LowerTemperature Range -100  Degrees Fahrenheit
Upper Temperature Range 350  Degrees Fahrenheit
Specification Met AS568A
Durometer 70a
UNSPSC Code 31410000

This O-ring is made of blue fluorosilicone, is round in cross-section, has a durometer of 70A,... Read full product description



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Size Nominal Inside Diameter Nominal Outside Diameter Nominal Width Inside Diameter Outside Diameter Overall Width Number of Items Part Number Price Quantity
   
001 0.029 inches 3/32 inches 0.04 inches 0.029 inches 3/32 inches 0.04 inches 100 B001385B5M
In Stock (4)
$5.46
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002 0.042 inches 9/64 inches 0.05 inches 0.042 inches 9/64 inches 0.05 inches 100 B001385B66
In Stock (9)
$59.38
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004 0.07 inches 13/64 inches 0.07 inches 0.07 inches 13/64 inches 0.07 inches 100 B0013814VM
In Stock (3)
$19.53
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005 0.101 inches 7/32 inches 0.07 inches 0.101 inches 7/32 inches 0.07 inches 100 B001383816
In Stock (2)
$19.57
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006 0.114 inches 1/4 inches 0.07 inches 0.114 inches 1/4 inches 0.07 inches 100 B001385B8O
In Stock (2)
$19.80
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007 0.145 inches 9/32 inches 0.07 inches 0.145 inches 9/32 inches 0.07 inches 100 B0013814YY
In Stock (1)
$34.35
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008 0.176 inches 5/16 inches 0.07 inches 0.176 inches 5/16 inches 0.07 inches 100 B001385BAM
In Stock (5)
$20.52
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009 0.208 inches 11/32 inches 0.07 inches 0.208 inches 11/32 inches 0.07 inches 100 B00138150M
Usually ships in 3 to 4 weeks
$20.39
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010 0.239 inches 3/8 inches 0.07 inches 0.239 inches 3/8 inches 0.07 inches 100 B00138384I
In Stock (2)
$41.11
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011 0.301 inches 7/16 inches 0.07 inches 0.301 inches 7/16 inches 0.07 inches 100 B00138385M
In Stock (2)
$20.05
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012 0.364 inches 1/2 inches 0.07 inches 0.364 inches 1/2 inches 0.07 inches 100 B001387FRO
In Stock (3)
$25.21
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013 0.426 inches 9/16 inches 0.07 inches 0.426 inches 9/16 inches 0.07 inches 100 B001387FS8
Usually ships in 3 to 4 weeks
$23.89
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014 0.489 inches 5/8 inches 0.07 inches 0.489 inches 5/8 inches 0.07 inches 100 B001380CKG
In Stock (2)
$9.60
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015 0.551 inches 11/16 inches 0.07 inches 0.551 inches 11/16 inches 0.07 inches 100 B00138387A
In Stock (1)
$34.85
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016 0.614 inches 3/4 inches 0.07 inches 0.614 inches 3/4 inches 0.07 inches 100 B001381548
In Stock (3)
$37.63
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017 0.676 inches 13/16 inches 0.07 inches 0.676 inches 13/16 inches 0.07 inches 100 B001385BFW
In Stock (2)
$12.19
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018 0.739 inches 7/8 inches 0.07 inches 0.739 inches 7/8 inches 0.07 inches 100 B001380CMY
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$42.36
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019 0.801 inches 15/16 inches 0.07 inches 0.801 inches 15/16 inches 0.07 inches 100 B00138389S
In Stock (1)
$44.90
Prime Eligible
019 0.801 inches 15/16 inches 0.07 inches 0.801 inches 15/16 inches 0.07 inches 25 B001387FXI
In Stock (1)
$15.13
Prime Eligible
020 0.864 inches 1 inches 0.07 inches 0.864 inches 1 inches 0.07 inches 100 B0013838AM
In Stock (1)
$48.27
Prime Eligible
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Product Features

  • Made of fluorosilicone rubber for use with a variety of fluids
  • Can be used across a wide temperature range from -100 degrees F (-73 degrees C) to 350 degrees F (177 degrees C)
  • Round in cross-section to provide a seal between cylindrical overlapping surfaces
  • Durometer (hardness) of 70A for resistance to penetration
  • Meets standards defined by Aerospace Standard AS568A

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B003SLE5KY
  • Average Customer Review: 4.9 out of 5 stars  See all reviews (7 customer reviews)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

This O-ring is made of blue fluorosilicone, is round in cross-section, has a durometer of 70A, and is designed for use in a wide variety of sealing applications.

Fluorosilicone has very good resistance to ozone, weathering, detergent, salt water, engine and transmission oil, non-petroleum brake fluid, hydraulic fluids that resist fire, vegetable and animal oils, high molecular weight chlorinated aromatic hydrocarbons, and has better mineral oil, fuel, and aromatic hydrocarbons (benzene) compatibility than silicone. Fluorosilicone is acceptable for temperature applications between -100 degrees F (-73 degrees C) to 350 degrees F (177 degrees C). Like silicone, fluorosilicone is vulnerable to mechanical wear and tear, water and steam over 250 degrees F (121degrees C), chlorinated hydrocarbons (trichloroethylene), acids and bases, and hydrocarbon fuels.

This fluorosilicone O-ring has a shore durometer of 70A. Shore durometer is 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, with 100 indicating no indentation.

O-rings commonly 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 sizes, and can be ordered based on required nominal inside diameter (ID), outer diameter (OD), and cross-sectional (CS) diameter.

This fluorosilicone O-ring meets standards defined by Aerospace Standard AS568A, which is the Aerospace Size Standard for O-rings.


Customer Questions & Answers

Customer Reviews

5 star
86%
4 star
14%
3 star
0%
2 star
0%
1 star
0%
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Most Helpful Customer Reviews

4 of 4 people found the following review helpful By D. Sauer on July 11, 2011
Size: 007Nominal Width: 0.07Overall Width: 0.07Outside Diameter: 9/32Inside Diameter: 0.145Nominal Inside Diameter: 0.145Number of Items: 25Nominal Outside Diameter: 9/32 Verified Purchase
I ordered these with next-day shipping so I could repair a vacuum leak in my 2004 Mercury Grand Marquis EATC (electronic automatic temperature control) unit. There is a common problem where the rubber o-rings will fail, causing a vacuum leak and letting all of the air blow out the defrost vent regardless of the setting. These are the same as the silicone o-rings others use to fix the problem, except that fluorosilicone is more chemical resistant. I don't car about that, but I do care that these were avaialble in a pack of 25, while the silicone was only available in a pack of 100. Since I only need 4, this was a good deal.

The item arrived quickly, as promised (I really like dealing with Small Parts, Inc), and they work very well for what I needed.

The dealership's only option is to replace the EATC, which is a >$600 part. For about an hour of my time and around ten bucks shipped (next-day w/ Amazon Prime) for these o-rings, I got an incredible deal. :) They'll fix the same problem (air only comes out defrost vent) on a lot of vehicles, since Ford used the same basic controller in the Explorer, F-150, Crown Vic, Grand Marquis, Marauder, and probably a few other cars for several years.
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1 of 1 people found the following review helpful By Gearhead Mania TOP 500 REVIEWER on May 18, 2013
Size: 202Nominal Width: 0.139Overall Width: 0.139Outside Diameter: 1/2Inside Diameter: 0.234Nominal Inside Diameter: 0.234Number of Items: 25Nominal Outside Diameter: 1/2
Fluorosilicone O-Rings size 202

I purchased these for my 3-bar MAP sensors and to keep them on hand in case the original Viton O-rings failed. So far the fluorosilicone o-rings are handling 27 psi of boost without any problems.

Viton is popular because it is abrasion resistant and relatively strong, and has a high operating temperature range. However, Viton generally does not perform well below -20F and they tend to take a set in high temperature applications. Silicone has a much wider temperature range but it isn't as resilient against a lot of fuels and oils, and isn't abrasion/tear resistant - although Ford uses them for the anti-drain back valve on their engine oil filters.

Fluorosilicone combines the properties of Viton with silicone to give it outstanding cold temperature performance down to -100F and up to +350F, while being resilient against most automotive fuels and oils which happens to be the environment of the MAP sensors. I read that many fuel injectors use fluorosilicone o-rings as well, which makes sense given their application.

These were sized properly with minor variances in the outer diameter.

Overall: 5/5 stars
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By Victor Ruiz on February 13, 2014
Size: 338Nominal Width: 0.21Overall Width: 0.21Outside Diameter: 3-1/2Inside Diameter: 3.1Nominal Inside Diameter: 3.1Number of Items: 1Nominal Outside Diameter: 3-1/2 Verified Purchase
Replacing orings on fuel cap. These are more durable than the ones in place. I like them. Glad you had these in stock.
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By Jaxn on December 15, 2012
Size: 437Nominal Width: 0.275Overall Width: 0.275Outside Diameter: 6-1/2Inside Diameter: 5.975Nominal Inside Diameter: 5.975Number of Items: 1Nominal Outside Diameter: 6-1/2 Verified Purchase
So far this ring, being used to drive a key copying machine, has worked well though I got this particular type for the cold weather capabilities claimed, for use in my truck. The weather has not yet been extremely cold yet so we will see how well it performs then.
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