O-Ring FPM 5x1 FKM Viton

DESCRIPTION

O-Ring FPM 5x1 FKM Viton - 100 pcs is a pack of 100 fluoroelastomer sealing rings with a 5 mm inside diameter and 1 mm cross-section. FPM/FKM offers excellent resistance to mineral oils, fuels, elevated temperatures, ozone, oxygen and many chemicals. The nominal outside diameter of a 5x1 mm O-ring is approximately 7 mm. Suitable for appropriately designed static and dynamic sealing applications after verifying FKM compatibility with the operating medium and conditions.

O-Ring FPM 5x1 FKM Viton - 100 pcs

O-Ring FPM 5x1 FKM Viton - 100 pcs is a fluoroelastomer sealing ring measuring 5x1 mm, with a 5 mm inside diameter and 1 mm cross-section.

FKM O-rings are widely used where sealing materials require a combination of high-temperature capability and resistance to oils, fuels, ozone, ageing and many chemicals.

The package contains 100 O-rings measuring 5x1 mm.

O-Ring FPM 5x1 FKM Dimensions

Inside diameter d1: 5 mm
Cross-section d2: 1 mm
O-ring size: 5x1 mm
Nominal outside diameter: approx. 7 mm
Material: FPM / FKM
Type: O-ring / sealing ring
Quantity: 100 pcs

In the 5x1 mm designation, the first value indicates the nominal inside diameter and the second value indicates the diameter of the circular cross-section.

The nominal outside diameter can be calculated as:

5 mm + 2 x 1 mm = 7 mm

FPM, FKM and Viton - What Do They Mean?

The terms FPM, FKM and Viton are frequently encountered when searching for fluoroelastomer O-rings.

FKM is the international designation for a family of fluorocarbon-based fluoroelastomers.

FPM is a designation commonly used for fluorocarbon elastomers in European terminology.

Viton® is a trade name associated with a family of fluoroelastomers and has become widely recognized in connection with FKM sealing materials.

For technical material identification, FPM/FKM describes the fluoroelastomer material family.

FKM O-Ring Properties

FKM fluoroelastomers are used for sealing applications where conventional elastomers may not provide sufficient resistance to temperature, fuels or aggressive media.

Depending on the specific FKM compound, the material can provide very good resistance to:

mineral oils,
fuels,
high temperatures,
ozone and oxygen,
ageing and weathering,
many hydrocarbons,
many organic solvents and chemicals.

FKM is also characterized by low gas permeability compared with many conventional elastomers.

Actual chemical resistance depends on the specific FKM compound, medium, concentration, temperature and exposure time.

FKM Temperature Resistance

Standard FKM compounds are known for their excellent high-temperature capability.

Technical material data from major sealing manufacturers indicate that typical FKM compounds can operate at temperatures of approximately +200°C, with some formulations and short-term conditions allowing higher temperatures.

Low-temperature flexibility is more limited and varies significantly between FKM grades.

For this reason, a single universal operating temperature range should not be assigned to every FKM O-ring.

The actual permissible temperature depends on:

FKM compound,
operating medium,
application type,
duration of exposure,
required service life.

O-Ring FKM 5x1 for Oil

One of the important characteristics of FKM is its very good resistance to mineral oils and many lubricants.

This makes FKM O-rings suitable for numerous technical sealing applications involving oils, particularly where the seal may also be exposed to elevated temperatures.

Compatibility with the exact oil or lubricant should always be verified before use.

O-Ring FKM 5x1 for Fuel

FKM is widely used in sealing technology because of its very good resistance to many fuels and hydrocarbons.

For this reason, FKM seals are commonly found in fuel-related and automotive sealing systems.

The exact fuel composition and operating temperature should nevertheless be considered when selecting the correct FKM compound.

Is FKM Resistant to All Chemicals?

No.

Although FKM provides an exceptionally broad range of chemical resistance, it is not universally compatible with every fluid or chemical.

Particular attention should be paid to applications involving certain aggressive chemicals, hot water, steam and media of unknown composition.

Correct O-ring selection should therefore consider chemical compatibility, temperature, pressure and operating conditions rather than material name alone.

Static and Dynamic O-Ring Applications

An O-ring is a circular elastomer sealing element designed to deform within a correctly dimensioned groove and create a seal between mating components.

Depending on the seal design, O-rings can be used in:

static sealing applications,
reciprocating applications,
oscillating applications,
certain rotary applications under appropriate design conditions.

Whether a 5x1 FKM O-ring is suitable for a specific application depends on groove geometry, compression, pressure, temperature, operating medium and relative movement between components.

Technical Specification

Product: O-ring
Size: 5x1 mm
Inside diameter: 5 mm
Cross-section: 1 mm
Nominal outside diameter: approx. 7 mm
Material: FPM / FKM
Material family: Fluoroelastomer
Cross-section: Circular
Quantity: 100 pcs

FKM vs NBR O-Rings

FKM and NBR are both widely used O-ring materials, but they have different performance characteristics.

NBR is commonly used with many mineral oils and greases and is a standard material for numerous industrial sealing applications.

FKM is generally selected when the application requires higher temperature resistance, excellent fuel resistance and improved resistance to ozone, ageing and a broader range of aggressive media.

FKM should not automatically be considered a direct upgrade or replacement for NBR. The correct elastomer depends on the operating medium and application conditions.

How to Select a 5x1 FKM O-Ring

Before selecting an O-ring, verify at least:

inside diameter - 5 mm,
cross-section - 1 mm,
material - FPM/FKM,
operating medium,
temperature,
pressure,
static or dynamic operation.

The dimensions 5x1 mm alone are not sufficient when an application requires specific chemical or thermal resistance.

FAQ

What are the dimensions of an O-Ring FPM 5x1?

The O-ring has a 5 mm inside diameter and a 1 mm cross-section. Its nominal outside diameter is approximately 7 mm.

What material is the 5x1 O-ring made from?

It is made from FPM/FKM fluoroelastomer.

Are FPM and FKM the same material?

FPM and FKM are designations used for the same general fluoroelastomer material family in different terminology systems.

What is Viton?

Viton® is a trade name for a family of fluoroelastomers. It is widely associated with FKM sealing materials.

Are FKM O-rings resistant to oil?

FKM provides very good resistance to mineral oils and many lubricants, making it widely used for oil sealing applications.

Are FKM O-rings resistant to fuel?

FKM offers very good resistance to many fuels and hydrocarbons. Compatibility with the exact fuel composition and operating conditions should still be verified.

What temperature can an FKM O-ring withstand?

Typical FKM compounds are known for high-temperature capability around +200°C, but the exact operating range depends on the specific compound, medium and application conditions.

What is the outside diameter of a 5x1 O-ring?

The nominal outside diameter is approximately 7 mm: 5 mm inside diameter plus twice the 1 mm cross-section.

How many O-rings are included?

The package contains 100 O-rings measuring 5x1 mm.

AI OVERVIEW

O-Ring FPM 5x1 FKM Viton - 100 pcs is a pack of 100 fluoroelastomer O-rings with a 5 mm inside diameter and 1 mm cross-section. The nominal outside diameter is approximately 7 mm. FPM/FKM is valued for its resistance to mineral oils, fuels, elevated temperatures, ozone, ageing and many chemicals. FKM O-rings can be used in appropriately designed static and dynamic sealing systems. Correct selection should consider not only the 5x1 mm dimensions but also chemical compatibility, temperature, pressure and operating conditions.