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NITRILE X-Rings
Q4251 3.53mm Section 129.77mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 129.77mm
Outside Diameter: 136.83mm
Hardness: 90 Shore
O-ring Lubricants?
O-ring Tools
Q4252 3.53mm Section 132.94mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 132.94mm
Outside Diameter: 140mm
Hardness: 90 Shore
O-ring Lubricants?
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Q4253 3.53mm Section 136.12mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 136.12mm
Outside Diameter: 143.18mm
Hardness: 90 Shore
O-ring Lubricants?
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Q4254 3.53mm Section 139.29mm Bore Quad Section NITRILE 70 Rubber X-Ring
Nitrile 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: 139.29mm
Outside Diameter: 146.35mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
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Q4254 3.53mm Section 139.29mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 139.29mm
Outside Diameter: 146.35mm
Hardness: 90 Shore
O-ring Lubricants?
O-ring Tools
Q4255 3.53mm Section 142.47mm Bore Quad Section NITRILE 70 Rubber X-Ring
Nitrile 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: 3.53mm
Inside Diameter: 142.47mm
Outside Diameter: 149.53mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4255 3.53mm Section 142.47mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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
Please Enquire
Cross Section: 3.53mm
Inside Diameter: 142.47mm
Outside Diameter: 149.53mm
Hardness: 90 Shore
O-ring Lubricants?
O-ring Tools
Q4256 3.53mm Section 145.64mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 3.53mm
Inside Diameter: 145.64mm
Outside Diameter: 152.7mm
Hardness: 90 Shore
O-ring Lubricants?
O-ring Tools
Q4257 3.53mm Section 148.82mm Bore Quad Section NITRILE 70 Rubber X-Ring
Nitrile 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: 148.82mm
Outside Diameter: 155.88mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4257 3.53mm Section 148.82mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 148.82mm
Outside Diameter: 155.88mm
Hardness: 90 Shore
O-ring Lubricants?
O-ring Tools
Q4258 3.53mm Section 151.99mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 3.53mm
Inside Diameter: 151.99mm
Outside Diameter: 159.05mm
Hardness: 90 Shore
O-ring Lubricants?
O-ring Tools
Q4259 3.53mm Section 158.34mm Bore Quad Section NITRILE 70 Rubber X-Ring
Nitrile 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: 158.34mm
Outside Diameter: 165.4mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4259 3.53mm Section 158.34mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 158.34mm
Outside Diameter: 165.4mm
Hardness: 90 Shore
O-ring Lubricants?
O-ring Tools
Q4260 3.53mm Section 164.69mm Bore Quad Section NITRILE 70 Rubber X-Ring
Nitrile 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: 164.69mm
Outside Diameter: 171.75mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4260 3.53mm Section 164.69mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 164.69mm
Outside Diameter: 171.75mm
Hardness: 90 Shore
O-ring Lubricants?
O-ring Tools
Q4261 3.53mm Section 171.04mm Bore Quad Section NITRILE 70 Rubber X-Ring
Nitrile 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: 171.04mm
Outside Diameter: 178.1mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4261 3.53mm Section 171.04mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 171.04mm
Outside Diameter: 178.1mm
Hardness: 90 Shore
O-ring Lubricants?
O-ring Tools
Q4262 3.53mm Section 177.39mm Bore Quad Section NITRILE 70 Rubber X-Ring
Nitrile 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: 177.39mm
Outside Diameter: 184.45mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
O-ring Tools
Q4262 3.53mm Section 177.39mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 177.39mm
Outside Diameter: 184.45mm
Hardness: 90 Shore
O-ring Lubricants?
O-ring Tools
Q4263 3.53mm Section 183.74mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 183.74mm
Outside Diameter: 190.8mm
Hardness: 90 Shore
O-ring Lubricants?
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Q4264 3.53mm Section 190.09mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 190.09mm
Outside Diameter: 197.15mm
Hardness: 90 Shore
O-ring Lubricants?
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Q4265 3.53mm Section 196.44mm Bore Quad Section NITRILE 70 Rubber X-Ring
Nitrile 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: 196.44mm
Outside Diameter: 203.5mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
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Q4265 3.53mm Section 196.44mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 196.44mm
Outside Diameter: 203.5mm
Hardness: 90 Shore
O-ring Lubricants?
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Q4266 3.53mm Section 202.79mm Bore Quad Section NITRILE 70 Rubber X-Ring
Nitrile 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: 202.79mm
Outside Diameter: 209.85mm
Hardness: * 70 Shore (Most Common)
O-ring Lubricants?
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Q4266 3.53mm Section 202.79mm Bore Quad Section NITRILE 90 Rubber X-Ring
Nitrile Rubber X Rings with 90 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: 202.79mm
Outside Diameter: 209.85mm
Hardness: 90 Shore
O-ring Lubricants?
O-ring Tools
Nitrile X Rings
Simply Bearings is a market-leading supplier of replacement parts for a huge variety of industrial and plant equipment. We are proud to offer a wide selection of nitrile X rings from our modern warehouse based in the heart of Lancashire. The range of nitrile X rings that we stock is truly extensive, with X ring cross sections varying from 0.5mm to 7mm and inside/outside diameters ranging from 0.74mm to over 670mm. This allows us to say with confidence that we can supply the precise product to meet your requirements.
Nitrile rubber is a polymer-based synthetic rubber that displays a high resistance to hydrocarbons, acids and oil, among other chemicals. Nitrile, otherwise known as Buna-N or NBR, is widely used across many branches of industry to make fuel and oil handling equipment, such as hoses, seals and self-sealing fuel tanks in cases where ordinary organic rubber would fail. Nitrile rubber can withstand temperatures ranging from -40c to +108c, and it is even used in aeronautical and nuclear applications.
The four-lobed design of quad rings (X-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
You can conveniently search our extensive range using either the drop-down menus at the top of the page, or if you know specifically what you're looking for, try searching by size with the search boxes located to the left of the page.
For more information on the specific chemical resistances of any of the nitrile oil seals in our range, simply click Chemical Resistance Table to view a searchable list of chemicals and see how they interact with that specific X ring. X ring compatibility with each chemical is rated from 1 for Excellent to * for Totally Unsuitable to ensure that you find a product that will do its job safely and successfully.
We are committed to providing our clients with the highest levels of customer service, so it's only natural that we offer free delivery on all orders in the UK. We also offer generous price reductions for higher-volume purchases. If you have any questions or need help in finding the right nitrile O rings for your application, please get in touch and a knowledgeable and friendly member of our team will be happy to assist you.






Chemical Resistance Table [Click Here]
