O-ring 117.07x3.53 FPM/FKM Viton - Fluoroelastomer O-ring

Technical Specifications

The product designation does not establish the colour, dimensional tolerances, hardness, exact compound formulation, permissible operating temperature range or maximum working pressure.

These parameters must be confirmed in the technical documentation for the supplied product.

What Does O-ring 117.07x3.53 FPM/FKM Viton Mean?

The designation identifies the nominal dimensions and elastomer family.

• 117.07 mm – nominal inside diameter.

• 3.53 mm – nominal cross-sectional diameter.

• FPM – designation for fluorocarbon rubber used in technical documentation.

• FKM – designation identifying the fluoroelastomer material family.

• Viton – registered trademark associated with specific fluoroelastomer materials.

The nominal outside diameter is calculated as:

The value of 124.13 mm is a calculated nominal dimension, not a separately verified measurement of the finished sealing ring.

Important: FPM and FKM refer to the same general elastomer family, but not every FKM compound is genuine Viton-branded material. Verification of genuine Viton origin requires supporting manufacturer or material documentation.

Construction and Sealing Principle

The O-ring 117.07x3.53 mm FPM/FKM is a continuous elastomeric ring with a circular cross-section.

When installed in a correctly designed sealing groove and compressed between mating surfaces, the elastomer undergoes controlled deformation. The resulting contact pressure helps prevent leakage through the sealed connection.

Sealing performance depends on groove geometry, compression ratio, dimensional tolerances, operating pressure, surface finish and the characteristics of the specific FKM compound.

With a nominal inside diameter of 117.07 mm and a cross-sectional diameter of 3.53 mm, particular attention should be paid to positioning the O-ring evenly in the groove, without twisting, excessive stretching or localised deformation.

Properties of FPM/FKM Fluoroelastomer Rubber

FKM fluoroelastomers are widely used in industrial sealing systems because of their chemical and thermal resistance.

Typical characteristics of this material family include:

• Resistance to many mineral and synthetic oils.

• Resistance to numerous fuels and petroleum-based products.

• Suitability for elevated operating temperatures, depending on the compound.

• Good resistance to ozone and atmospheric ageing.

• Relatively low permeability to many gases.

• Limited compatibility with certain ketones, esters, amines and other chemicals, depending on the FKM formulation.

Individual FKM compounds may differ in their chemical and mechanical properties depending on polymer composition, curing system and additives.

Without documentation for the specific compound, exact operating temperature limits or universal chemical compatibility cannot be reliably assigned to this O-ring.

FPM/FKM Compared with Other Elastomers

FKM is not a universal sealing material. The appropriate elastomer must be selected according to the operating medium, temperature, pressure and type of sealing application.

Alternative Designations and Search References

The product may appear in technical documentation and purchasing enquiries under the following descriptions:

• O-ring 117.07x3.53 FPM

• O-ring 117.07x3.53 FKM

• FKM O-ring 117.07x3.53 mm

• Fluoroelastomer O-ring 117.07x3.53

• FPM sealing ring 117.07x3.53 mm

• Fluorocarbon rubber O-ring 117.07x3.53

• O-ring 117.07x3.53 Viton

These are descriptive variations, not verified manufacturer part numbers or confirmed OEM cross-references.

The term Viton does not independently confirm that the supplied material is a genuine Viton-branded compound.

Selection and Interchangeability

Before selecting the O-ring 117.07x3.53 mm FPM/FKM, verify:

• Nominal inside diameter of 117.07 mm.

• Cross-sectional diameter of 3.53 mm.

• Sealing groove geometry and dimensional tolerances.

• Required compression ratio.

• Shore A hardness of the supplied compound.

• Operating temperature and pressure.

• Chemical compatibility with the sealed medium.

• Static or dynamic sealing conditions.

• Compression set requirements.

• Risk of extrusion into clearance gaps.

Matching nominal dimensions alone does not guarantee interchangeability.

In particular, O-rings with cross-sectional diameters of 3.5 mm, 3.53 mm and 3.55 mm should not automatically be considered interchangeable without checking groove geometry, dimensional tolerances and required compression.

Typical Applications

FKM O-rings may be considered for appropriately designed sealing arrangements, including:

• Equipment housings and covers.

• Selected oil-handling systems.

• Industrial valves and fittings.

• Certain hydraulic assemblies.

• Equipment operating with media compatible with the specific FKM compound.

These are general applications of FKM sealing materials, not confirmed OEM applications for this particular O-ring 117.07x3.53 mm.

Final suitability must be established according to actual operating conditions.

Installation and Storage

Before installation, clean the sealing groove and mating surfaces. Remove contamination, burrs and sharp edges that could damage the elastomer.

Install the O-ring evenly without twisting, excessive stretching or local damage to its cross-section.

If an assembly lubricant is required, verify its compatibility with the specific FKM compound and the sealed medium.

During storage, protect the O-ring from contamination, mechanical damage and unnecessary deformation.

FAQ - Frequently Asked Questions

1. What are the dimensions of the O-ring 117.07x3.53 FPM/FKM?

The nominal inside diameter is 117.07 mm, and the cross-sectional diameter is 3.53 mm. The calculated nominal outside diameter is 124.13 mm.

2. Are FPM and FKM the same material?

Both designations refer to the fluoroelastomer family. However, individual FKM compounds may differ in their chemical and mechanical properties.

3. Is every FKM O-ring manufactured from genuine Viton?

No. Viton is a registered trademark associated with specific fluoroelastomer materials. The FKM designation alone does not verify genuine Viton origin.

4. Is the O-ring 117.07x3.53 FKM resistant to oil?

Many FKM compounds provide resistance to mineral oils and numerous synthetic oils. Compatibility with the specific oil formulation and operating conditions must be verified.

5. What is the operating temperature range of the O-ring 117.07x3.53 FPM/FKM?

The permissible operating temperature range depends on the specific compound and has not been verified for this product.

6. Can a 3.53 mm cross-section be replaced with 3.5 mm?

Not without checking sealing groove geometry, dimensional tolerances and required compression. Even small differences in cross-sectional diameter may affect sealing performance.

7. Is the O-ring 117.07x3.53 FKM suitable for dynamic sealing applications?

Dynamic sealing requires evaluation of groove geometry, movement speed, friction, lubrication and compound properties.

8. What is the Shore A hardness of the O-ring 117.07x3.53 FKM?

The Shore A hardness is not specified in the product designation. It must be confirmed in the technical documentation for the supplied sealing ring.

O-ring 117.07x3.53 FPM/FKM - Key Information

The O-ring 117.07x3.53 mm FPM/FKM is a fluoroelastomer sealing ring with a nominal inside diameter of 117.07 mm and a cross-sectional diameter of 3.53 mm. Its calculated nominal outside diameter is 124.13 mm. FKM materials are commonly selected for resistance to many oils, fuels and elevated temperatures. Exact operating limits depend on the specific elastomer compound.

The product is intended for industrial procurement through the specialist B2B industrial trading platform simmering.pl, supporting worldwide shipping from stock in Poland, subject to availability.