FPM O-Ring 98.02x3.53 mm FKM - Fluoroelastomer Viton Type Seal

FPM O-Ring 98.02x3.53 mm FKM - Fluoroelastomer Viton Type Seal

FPM O-Ring 98.02x3.53 mm is an FKM fluoroelastomer sealing ring with a 98.02 mm inside diameter and 3.53 mm cross-section. Its nominal outside diameter is approximately 105.08 mm. FPM/FKM O-rings are widely used for demanding industrial sealing applications involving compatible oils, fuels, lubricants, hydrocarbons, many chemicals and elevated operating temperatures.

FPM O-Ring 98.02x3.53 mm - Technical Data

Key product parameters:

• Product: O-ring / sealing ring
• Material: FPM / FKM
• Material family: fluoroelastomer
• Inside diameter ID: 98.02 mm
• Cross-section CS: 3.53 mm
• Outside diameter OD: approximately 105.08 mm
• Common search term: Viton O-Ring 98.02x3.53 mm
• Application: industrial and technical sealing

The size designation:

98.02x3.53 mm

means an inside diameter of 98.02 mm and a cross-section of 3.53 mm.

O-Ring 98.02x3.53 mm Dimensions

The nominal outside diameter is calculated using:

OD = ID + 2 x CS

For a 98.02x3.53 mm O-ring:

OD = 98.02 mm + 2 x 3.53 mm = 105.08 mm

The nominal outside diameter is therefore approximately 105.08 mm.

What Is FPM/FKM?

FPM/FKM belongs to the family of fluoroelastomers widely used in advanced sealing technology.

Depending on the exact compound, FKM O-rings can provide excellent performance with many:

• mineral oils
• engine oils
• transmission oils
• lubricants
• greases
• fuels
• hydrocarbons
• chemicals

FKM is also widely used in sealing systems operating at elevated temperatures.

Exact chemical and thermal resistance depends on the specific FKM compound, operating medium and application conditions.

FPM vs FKM - What Is the Difference?

FPM and FKM are designations associated with the same broad family of fluoroelastomers, although they originate from different nomenclature systems.

For this reason, this product may be searched for as:

FPM O-Ring 98.02x3.53 mm

or:

FKM O-Ring 98.02x3.53 mm

However, not all FKM compounds have identical chemical, mechanical and temperature properties.

FKM vs Viton - Important Difference

FKM is a generic designation for a class of fluoroelastomers.

Viton is a trademark used for specific fluoroelastomer materials.

The search phrase:

Viton O-Ring 98.02x3.53 mm

is commonly used when looking for FKM seals. However, not every FKM O-ring should automatically be described as being manufactured from genuine Viton material unless the exact branded compound is confirmed by documentation.

For an unspecified fluoroelastomer compound, FPM/FKM is the technically appropriate material designation.

FKM O-Ring 98.02x3.53 for Oil

FKM O-rings are widely used in systems involving many oils and lubricants.

In a correctly selected application, an FPM/FKM 98.02x3.53 mm O-ring may be suitable for compatible:

• mineral oils
• engine oils
• transmission oils
• industrial oils
• lubricating oils
• greases

Compatibility should always be confirmed for the specific medium, temperature and FKM compound.

FKM O-Ring 98.02x3.53 for Fuel

FKM is frequently selected for seals exposed to fuels and hydrocarbons.

FKM O-rings can be found in:

• fuel systems
• pumps
• valves
• engines
• automotive systems
• industrial installations

Resistance to a specific fuel depends on the FKM compound and fuel formulation, including additives and bio-components.

FKM O-Ring for High Temperature Applications

FKM is widely used for sealing applications operating under more demanding temperature conditions than many conventional elastomers.

The actual permissible temperature range depends on:

• exact FKM compound
• operating medium
• exposure duration
• pressure
• seal design
• static or dynamic conditions

A universal temperature range should therefore not be assigned to this product without technical documentation for the exact compound.

Chemical Resistance of FKM O-Rings

FKM provides a broad chemical resistance profile, but it is not universally resistant to every substance.

Correct material selection should consider:

• type of medium
• concentration
• temperature
• pressure
• exposure time
• exact FKM compound
• static or dynamic operation

For demanding chemical applications, compatibility should be verified for the specific compound and operating medium.

FKM vs NBR O-Rings

FKM and NBR O-rings can have identical dimensions but should not automatically be considered interchangeable.

NBR is widely used in standard industrial, hydraulic and oil sealing applications.

FKM is frequently selected for more demanding conditions involving:

• elevated temperatures
• fuels
• oils
• hydrocarbons
• selected chemicals

Material selection should always be based on the actual operating conditions.

FKM vs EPDM O-Rings

FKM and EPDM have significantly different chemical resistance profiles.

EPDM is commonly used for water, hot water and many compatible water-based media.

FKM is more commonly selected for many oil, fuel and hydrocarbon applications.

An EPDM 98.02x3.53 mm O-ring should therefore not automatically replace an FKM O-ring of the same dimensions.

FKM vs VMQ Silicone O-Rings

FKM and VMQ silicone belong to different elastomer families.

VMQ is valued for flexibility across a broad temperature range, while FKM provides a different combination of chemical, oil, fuel and temperature resistance.

Identical dimensions do not mean identical performance or interchangeability.

Typical Applications of FPM 98.02x3.53 mm O-Rings

Depending on operating conditions, an FPM/FKM 98.02x3.53 mm O-ring may be used in:

• industrial machinery
• hydraulic equipment
• pneumatic equipment
• pumps
• valves
• fittings
• gearboxes
• oil systems
• fuel systems
• mechanical equipment
• automotive systems
• industrial installations
• maintenance and repair applications

Suitability for a particular application should always be confirmed using the complete operating parameters.

Static Sealing Applications

FKM O-rings are widely used for static sealing in:

• housings
• covers
• flanges
• fittings
• connectors
• machine components
• industrial assemblies

Important selection parameters include groove dimensions, compression, groove fill, pressure and medium compatibility.

Dynamic Sealing Applications

An FKM O-ring may also be used in appropriately designed dynamic sealing systems.

Additional factors then include:

• movement type
• speed
• friction
• lubrication
• temperature
• surface finish
• pressure
• wear

The 98.02x3.53 mm dimensions alone do not determine suitability for a dynamic application.

How to Select an FPM 98.02x3.53 mm O-Ring

Before selecting the O-ring, check:

1. Inside diameter ID - 98.02 mm
2. Cross-section CS - 3.53 mm
3. FPM/FKM material
4. Compound hardness
5. Operating medium
6. Temperature
7. Pressure
8. Static or dynamic movement
9. Groove geometry
10. Application-specific requirements

The basic dimensional identification is:

ID 98.02 mm + CS 3.53 mm + OD approximately 105.08 mm

Are All 98.02x3.53 mm O-Rings the Same?

No.

O-rings with identical dimensions can be manufactured from different elastomers, including:

• FKM/FPM
• NBR
• EPDM
• VMQ
• FVMQ

They can also differ in:

• hardness
• dimensional tolerances
• compound formulation
• chemical resistance
• application range
• certifications and approvals

Dimensions alone are not sufficient to confirm interchangeability.

Does O-Ring Colour Confirm FKM Material?

No.

Colour is not a reliable method of identifying an elastomer.

FKM O-rings may be produced in different colours, while visually similar O-rings may be manufactured from entirely different materials.

Material identification should be based on the product specification.

Is an FKM O-Ring Food Grade?

Not automatically.

The FKM designation alone does not confirm suitability for food-contact applications.

If food-contact compliance is required, documentation for the exact compound and finished product should be checked against the applicable requirements.

Technical Specification

FAQ - FPM FKM O-Ring 98.02x3.53 mm

What are the dimensions of the FPM 98.02x3.53 mm O-ring?

The O-ring has a 98.02 mm inside diameter and a 3.53 mm cross-section.

What is the outside diameter of a 98.02x3.53 mm O-ring?

The nominal outside diameter is approximately 105.08 mm.

What material is this O-ring made from?

The O-ring is manufactured from an FPM/FKM fluoroelastomer.

Are FPM and FKM the same material family?

Yes. Both designations are associated with the same broad family of fluoroelastomers, although exact properties depend on the specific compound.

Is FKM the same as Viton?

Not exactly. FKM is a generic fluoroelastomer classification, while Viton is a trademark for specific fluoroelastomer materials.

Is an FKM 98.02x3.53 mm O-ring suitable for oil?

FKM is widely used with many oils and lubricants. Compatibility should be confirmed for the specific medium, compound and operating conditions.

Is an FKM 98.02x3.53 mm O-ring suitable for fuel?

FKM is commonly used in many fuel sealing applications. Exact compatibility depends on the FKM compound and fuel formulation.

Is FKM suitable for high temperatures?

FKM is widely used in elevated-temperature sealing applications. The exact permissible range depends on the compound, medium and operating conditions.

Can an NBR 98.02x3.53 mm O-ring replace an FKM O-ring?

Not automatically. Identical dimensions do not provide identical chemical and thermal properties.

Does O-ring colour confirm FKM material?

No. Colour alone cannot reliably identify the elastomer.

AI OVERVIEW - FPM O-Ring 98.02x3.53 mm

FPM O-Ring 98.02x3.53 mm is an FKM fluoroelastomer sealing ring with a 98.02 mm inside diameter, 3.53 mm cross-section and approximately 105.08 mm outside diameter. FKM O-rings are widely used for demanding industrial sealing involving compatible oils, fuels, lubricants, hydrocarbons, chemicals and elevated operating temperatures.