O-ring FPM 5x1.5 FKM Viton

Technical specifications

The nominal outside diameter of 8 mm is calculated from the specified dimensions: 5 mm + 2 x 1.5 mm.

Important: FKM and FPM identify the general family of fluorocarbon elastomers. Viton is a trade name for certain fluoroelastomers. Without manufacturer documentation, the use of genuine Viton-branded material cannot be independently confirmed.

The manufacturer, Shore A hardness, dimensional tolerances, operating temperature range, permissible pressure and packaging quantity have not been established.

What does O-ring FPM 5x1.5 FKM Viton mean?

The designation identifies the sealing ring construction, nominal dimensions and elastomer family.

• O-ring - a continuous sealing ring with a circular cross-section.

• FPM - a designation for fluorocarbon rubber.

• 5 mm - nominal inside diameter of the sealing ring.

• 1.5 mm - nominal cross-sectional diameter.

• FKM - internationally recognized designation for the fluoroelastomer material family.

• Viton - a trade name for certain fluorocarbon elastomers, frequently associated with FKM sealing materials.

FKM and FPM refer to the same general elastomer family but do not identify the exact rubber formulation.

Construction and FKM/FPM material properties

The O-ring FPM 5x1.5 FKM Viton features a continuous, one-piece elastomeric construction with a circular cross-section.

During installation, the elastomer is compressed between mating surfaces. This controlled deformation generates contact pressure that helps prevent leakage through the sealing connection.

FKM fluorocarbon elastomers are used in demanding industrial environments because of their chemical and thermal resistance.

Typical properties of appropriately selected FKM compounds include:

• Resistance to many mineral and synthetic oils.

• Resistance to numerous fuels and hydrocarbons.

• Higher temperature resistance than standard NBR compounds.

• Good resistance to ozone and atmospheric exposure.

• Resistance to many chemicals, depending on the specific formulation.

FKM is not universally resistant to all chemicals. Certain ketones, amines, esters, hot water and steam may require specially formulated compounds or an alternative elastomer.

Actual compatibility depends on the rubber formulation, operating medium, temperature and exposure time.

O-ring FKM/FPM compared with NBR, EPDM and VMQ

Sealing rings with identical nominal dimensions of 5x1.5 mm are not automatically interchangeable when manufactured from different elastomers.

Typical applications

The O-ring FPM 5x1.5 FKM Viton may be suitable for appropriately designed sealing connections in:

• Small valves and industrial fluid control components.

• Technical component housings.

• Static sealing connections in industrial equipment.

• Installations operating with compatible oils and fuels.

• Compact hydraulic assemblies.

• Small equipment covers and mechanical housings.

These are potential applications based on the general construction and material properties of FKM O-rings, not verified OEM applications of this specific product.

Dynamic sealing applications require additional assessment of friction, lubrication, wear and groove geometry.

Selection and interchangeability

Before selecting the O-ring FPM 5x1.5 FKM Viton, verify the following parameters:

• Nominal inside diameter of 5 mm.

• Cross-sectional diameter of 1.5 mm.

• Dimensional tolerances.

• Installation groove dimensions and geometry.

• Required cross-sectional compression.

• Chemical compatibility with the operating medium.

• Operating temperature and pressure.

• Required Shore A hardness.

• Static or dynamic sealing conditions.

• Properties of the specific FKM compound.

Matching nominal dimensions does not guarantee complete technical interchangeability.

Elastomer hardness, compression set, chemical resistance and dimensional tolerances must also be considered.

Alternative designations and search references

Common alternative representations include:

• O-ring FPM 5x1.5 FKM Viton

• O-ring FKM 5x1.5 mm

• O-ring 5x1.5 FPM

• FKM sealing ring 5x1.5

• FPM O-ring 5x1.5 mm

• Viton O-ring 5x1.5

• Fluorocarbon rubber O-ring 5x1.5

• O-ring 5x1,5 FKM

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

The term Viton does not independently confirm the origin or brand certification of the elastomer.

Installation and handling

Before installation, thoroughly clean the sealing groove and mating surfaces.

Check that sharp edges and burrs cannot damage the elastomer.

Avoid twisting the ring, excessive stretching and the use of sharp installation tools.

Where assembly lubrication is required, use a lubricant compatible with the specific FKM compound and operating medium.

Store the sealing ring in a clean, dry environment protected from excessive heat, contamination and prolonged mechanical deformation.

FAQ - Frequently asked questions

1. What are the dimensions of the O-ring FPM 5x1.5 FKM Viton?

The nominal inside diameter is 5 mm, the cross-sectional diameter is 1.5 mm, and the calculated nominal outside diameter is 8 mm.

2. Do FPM and FKM refer to the same material?

Yes. Both designations refer to the general family of fluorocarbon elastomers, although individual compounds may have different properties.

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

No. Viton is a trade name for certain fluoroelastomers. The FKM designation alone does not confirm the use of genuine Viton-branded material.

4. Is the O-ring FPM 5x1.5 resistant to oils and fuels?

Many FKM compounds provide good resistance to oils and fuels. Compatibility must be verified for the specific operating medium and temperature.

5. What is the operating temperature range of the O-ring FKM 5x1.5?

The operating temperature range cannot be reliably established without information about the exact FKM compound and manufacturer specifications.

6. Can an NBR 5x1.5 O-ring be replaced with an FKM 5x1.5 O-ring?

Not automatically. Despite having identical nominal dimensions, the materials differ in chemical resistance, flexibility and temperature-dependent performance.

7. Is the O-ring FKM 5x1.5 suitable for hydraulic applications?

It may be suitable for appropriately designed hydraulic sealing connections, provided compatibility with the fluid and operating conditions has been confirmed.

8. Is the O-ring FKM 5x1.5 resistant to hot water and steam?

Resistance depends on the specific compound. Standard fluoroelastomers may have limited suitability for prolonged exposure to hot water and steam.

O-ring FPM 5x1.5 FKM Viton - key information

The O-ring FPM 5x1.5 FKM Viton is an elastomeric sealing ring with a 5 mm inside diameter and 1.5 mm cross-section, manufactured from fluorocarbon rubber (FKM/FPM). This material family is used in sealing applications requiring resistance to many oils, fuels and elevated temperatures. Proper selection requires verification of the elastomer compound, chemical compatibility and operating conditions.

The product is offered through the specialist B2B industrial trading platform simmering.pl, serving industrial companies, technical purchasing departments and maintenance operations, with worldwide shipping from stock in Poland.