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FKM X-Rings
Q4165 2.62mm Section 164.77mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
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Cross Section: 2.62mm
Inside Diameter: 164.77mm
Outside Diameter: 170.01mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4166 2.62mm Section 171.12mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
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Cross Section: 2.62mm
Inside Diameter: 171.12mm
Outside Diameter: 176.36mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4167 2.62mm Section 177.47mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
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Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 177.47mm
Outside Diameter: 182.71mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4168 2.62mm Section 183.82mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
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Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 183.82mm
Outside Diameter: 189.06mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4169 2.62mm Section 190.17mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 190.17mm
Outside Diameter: 195.41mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4170 2.62mm Section 196.52mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 196.52mm
Outside Diameter: 201.76mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4171 2.62mm Section 202.87mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 202.87mm
Outside Diameter: 208.11mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4172 2.62mm Section 209.22mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 209.22mm
Outside Diameter: 214.46mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4173 2.62mm Section 215.57mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 215.57mm
Outside Diameter: 220.81mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4174 2.62mm Section 221.92mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 221.92mm
Outside Diameter: 227.16mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4175 2.62mm Section 228.27mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 228.27mm
Outside Diameter: 233.51mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4176 2.62mm Section 234.62mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 234.62mm
Outside Diameter: 239.86mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4177 2.62mm Section 240.97mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 240.97mm
Outside Diameter: 246.21mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4178 2.62mm Section 247.32mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 2.62mm
Inside Diameter: 247.32mm
Outside Diameter: 252.56mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4201 3.53mm Section 4.34mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 3.53mm
Inside Diameter: 4.34mm
Outside Diameter: 11.4mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4202 3.53mm Section 5.94mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 3.53mm
Inside Diameter: 5.94mm
Outside Diameter: 13mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4204 3.53mm Section 9.12mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
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Cross Section: 3.53mm
Inside Diameter: 9.12mm
Outside Diameter: 16.18mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4206 3.53mm Section 12.29mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 3.53mm
Inside Diameter: 12.29mm
Outside Diameter: 19.35mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4207 3.53mm Section 13.87mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 3.53mm
Inside Diameter: 13.87mm
Outside Diameter: 20.93mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4209 3.53mm Section 17.04mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
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Cross Section: 3.53mm
Inside Diameter: 17.04mm
Outside Diameter: 24.1mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4211 3.53mm Section 20.22mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
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Cross Section: 3.53mm
Inside Diameter: 20.22mm
Outside Diameter: 27.28mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4213 3.53mm Section 23.39mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
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Cross Section: 3.53mm
Inside Diameter: 23.39mm
Outside Diameter: 30.45mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4215 3.53mm Section 26.57mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
Limited Availability
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Cross Section: 3.53mm
Inside Diameter: 26.57mm
Outside Diameter: 33.63mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4216 3.53mm Section 28.17mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
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Cross Section: 3.53mm
Inside Diameter: 28.17mm
Outside Diameter: 35.23mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4219 3.53mm Section 32.92mm Bore Quad Section FKM 70 Rubber X-Ring
FKM Rubber X Rings with 70 Shore Hardness: The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less [show more]...
Limited Stock
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Cross Section: 3.53mm
Inside Diameter: 32.92mm
Outside Diameter: 39.98mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
FKM X Rings
Simply Bearings is a market-leading supplier of replacement FKM X rings for a huge variety of industrial equipment. Our modern warehouse is stocked with a wide selection of differently sized and rated X rings - a selection that is so large that we are confident that we can provide you with the precise X ring to meet any of your requirements.
The four-lobed design of quad rings provides twice the sealing surface in comparison to a standard O-Ring. The double-seal action requires less compression to maintain an effective seal. This reduced compression results in less friction, longer seal life and a lower risk of twisting
X rings demonstrate a very high degree of chemical resistance. They can safely seal tens of thousands of PSI. Operating temperatures extend from -30c to +120c, but specific O rings have different ratings.
FKM, a form of synthetic rubber, is particularly resistant to hydrocarbons, making it an excellent rubber to use for oil seals. FKM oil seals, FKM tubing and hoses lined with FKM are commonly found in vehicles and fuel transportation applications. Some FKM oil seals are compatible even with biodiesel, which is a particularly unstable, oxidising and acidic fuel. FKM is, however, generally incompatible with ketone-based chemicals, including acetone, and certain organic acids, such as acetic acid.
FKM X rings can be used as an alternative to the Buna-N seals present in the automobile engine variable timing units in BMW's vehicles. FKM provides similar functional properties to Buna-N, but with the additional benefit of greater chemical and temperature resistances.
For more information on the specific chemical resistance ratings of any of the FKM X rings that we stock, simply click on the link for the relevant product entitled ""Chemical Resistance Table. You will be presented with a long and searchable list of chemicals and information about how they interact with that specific X ring. Use of the X ring with each chemical is rated from 1 for Excellent to * for Totally Unsuitable to ensure that you find the correct product to get the job done safely.






Chemical Resistance Table [Click Here]
