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FKM O-Rings
BS112 2.62mm Section 12.37mm 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: 12.37mm
Outside Diameter: 17.61mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS614 2.62mm Section 11.91mm 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: 11.91mm
Outside Diameter: 17.15mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS908 2.2mm Section 16.36mm 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: 2.2mm
Inside Diameter: 16.36mm
Outside Diameter: 20.76mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
1mm Section 36mm Bore FKM 75 Shore 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: 1mm
Inside Diameter: 36mm
Outside Diameter: 38mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.4mm Section 14.5mm Bore FKM 75 Shore 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: 2.4mm
Inside Diameter: 14.5mm
Outside Diameter: 19.3mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.4mm Section 14.6mm 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: 2.4mm
Inside Diameter: 14.6mm
Outside Diameter: 19.4mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.4mm Section 15.3mm 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: 2.4mm
Inside Diameter: 15.3mm
Outside Diameter: 20.1mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.5mm Section 14.5mm 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: 14.5mm
Outside Diameter: 19.5mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.5mm Section 14mm 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: 14mm
Outside Diameter: 19mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.5mm Section 15mm 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: 15mm
Outside Diameter: 20mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2mm Section 19.5mm 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: 2mm
Inside Diameter: 19.5mm
Outside Diameter: 23.5mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2mm Section 19mm 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: 2mm
Inside Diameter: 19mm
Outside Diameter: 23mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2mm Section 20mm 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: 2mm
Inside Diameter: 20mm
Outside Diameter: 24mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
3mm Section 9mm 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: 9mm
Outside Diameter: 15mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
4mm Section 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: 4mm
Inside Diameter: 5mm
Outside Diameter: 13mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS113 2.62mm Section 13.95mm 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: 2.62mm
Inside Diameter: 13.95mm
Outside Diameter: 19.19mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS203 3.53mm Section 7.52mm 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: 7.52mm
Outside Diameter: 14.58mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS615 2.62mm Section 13.1mm 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: 13.1mm
Outside Diameter: 18.34mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS616 2.62mm Section 15.08mm 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: 15.08mm
Outside Diameter: 20.32mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
BS807 2.62mm Section 12.7mm 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: 12.7mm
Outside Diameter: 17.94mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
1.6mm Section 25.1mm 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: 1.6mm
Inside Diameter: 25.1mm
Outside Diameter: 28.3mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.4mm Section 15.5mm Bore FKM 75 Shore 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: 2.4mm
Inside Diameter: 15.5mm
Outside Diameter: 20.3mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.4mm Section 15.6mm 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: 2.4mm
Inside Diameter: 15.6mm
Outside Diameter: 20.4mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.4mm Section 16.3mm 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: 2.4mm
Inside Diameter: 16.3mm
Outside Diameter: 21.1mm
Hardness: 75 Shore
O-ring Lubricants?
O-ring Tools
2.4mm Section 16.6mm 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: 2.4mm
Inside Diameter: 16.6mm
Outside Diameter: 21.4mm
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]
