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FKM O-Rings
5mm Section 13mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 5mm
Inside Diameter: 13mm
Outside Diameter: 23mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS234 3.53mm Section 75.8mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 3.53mm
Inside Diameter: 75.8mm
Outside Diameter: 82.86mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.5mm Section 104mm Bore 75 Shore FKM Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 2.5mm
Inside Diameter: 104mm
Outside Diameter: 109mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
4mm Section 68mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 4mm
Inside Diameter: 68mm
Outside Diameter: 76mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.5mm Section 105mm Bore 75 Shore FKM Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 2.5mm
Inside Diameter: 105mm
Outside Diameter: 110mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
3mm Section 94.5mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 3mm
Inside Diameter: 94.5mm
Outside Diameter: 100.5mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.5mm Section 106mm Bore 75 Shore FKM Rubber O-Rings Allow 2-3 Days
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 2.5mm
Inside Diameter: 106mm
Outside Diameter: 111mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
3mm Section 95mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 3mm
Inside Diameter: 95mm
Outside Diameter: 101mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.5mm Section 107mm Bore 75 Shore FKM Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 2.5mm
Inside Diameter: 107mm
Outside Diameter: 112mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
3mm Section 96mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 3mm
Inside Diameter: 96mm
Outside Diameter: 102mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
4mm Section 69mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 4mm
Inside Diameter: 69mm
Outside Diameter: 77mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS049 1.78mm Section 126.72mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 1.78mm
Inside Diameter: 126.72mm
Outside Diameter: 130.28mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS235 3.53mm Section 78.97mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 3.53mm
Inside Diameter: 78.97mm
Outside Diameter: 86.03mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
3mm Section 97mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 3mm
Inside Diameter: 97mm
Outside Diameter: 103mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS327 5.33mm Section 43.82mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 5.33mm
Inside Diameter: 43.82mm
Outside Diameter: 54.48mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
3mm Section 212mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 3mm
Inside Diameter: 212mm
Outside Diameter: 218mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.5mm Section 108mm Bore 75 Shore FKM Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 2.5mm
Inside Diameter: 108mm
Outside Diameter: 113mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
3mm Section 98mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 3mm
Inside Diameter: 98mm
Outside Diameter: 104mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
4mm Section 70mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 4mm
Inside Diameter: 70mm
Outside Diameter: 78mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
5mm Section 14mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 5mm
Inside Diameter: 14mm
Outside Diameter: 24mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS156 2.62mm Section 107.62mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 2.62mm
Inside Diameter: 107.62mm
Outside Diameter: 112.86mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.5mm Section 109mm Bore 75 Shore FKM Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 2.5mm
Inside Diameter: 109mm
Outside Diameter: 114mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.5mm Section 110mm Bore 75 Shore FKM Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 2.5mm
Inside Diameter: 110mm
Outside Diameter: 115mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
3mm Section 99.5mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 3mm
Inside Diameter: 99.5mm
Outside Diameter: 105.5mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
3mm Section 99mm Bore FKM 75 Shore Rubber O-Rings
FKM Rubber O Rings: Widely used and the simplest types of seal they are found everywhere from plumbing installations to the space shuttle, they are common in engines and gearboxes, garden [show more]... |
Cross Section: 3mm
Inside Diameter: 99mm
Outside Diameter: 105mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
FKM O Rings
Simply Bearings is a market-leading supplier of replacement FKM O rings for a huge variety of industrial equipment. Our modern warehouse is stocked with a wide selection of differently sized and rated O rings - a selection that is so large that we are confident that we can provide you with the precise O ring to meet any of your requirements.
O rings are perhaps the most widely used and certainly the simplest form of seal, which is unsurprising given that they are largely inexpensive, reliable and easy to mount. They are found everywhere from pumps, engines and gearboxes to SCUBA diving gear and NASA's space shuttles. O rings can be used as shaft seals, enabling both linear and rotary movement in dynamic applications - for example, rotating pump shafts and hydraulic cylinder pistons - but it can also be used in static applications as face-to-face seals.
O 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 O 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 O 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 O ring. Use of the O 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]
Tolerance Table [Click Here]
