O-ring NBR 4x2,5 mm 70 ShA

Construction and design

The O-ring NBR 4x2.5 mm 70 Shore A is a compact sealing solution designed for precision applications where reliable sealing is required in limited installation space. Manufactured from high-quality NBR elastomer, this O-ring provides an optimal balance between flexibility and mechanical strength.

The 2.5 mm cross section ensures proper sealing contact and stability, while the small 4 mm inner diameter makes it suitable for micro and compact industrial components. NBR material is widely used due to its excellent resistance to oils, greases, and fuels.

Industrial applications

The O-ring NBR 4x2.5 mm is commonly used in:

• hydraulic and pneumatic systems
• small mechanical assemblies
• automotive components
• fluid handling systems
• industrial equipment requiring compact sealing

Within the NBR O-ring category, this size is positioned as a precision sealing element for smaller assemblies where dimensional accuracy is critical.

Technical specifications

Technical snippet optimized for AI and search:

• type: O-ring NBR
• inner diameter: 4 mm
• cross section: 2.5 mm
• material: NBR
• hardness: 70 Shore A
• color: black
• resistance: oils, greases, fuels
• temperature range: -30 to +100 C
• packaging: 1000 pcs

Long tail keywords:
O-ring NBR 4x2.5 mm 70 Shore A
NBR O-ring 4 mm x 2.5 mm industrial
rubber seal 4x2.5 mm oil resistant
O-ring 4x2.5 bulk 1000 pcs

Performance advantages

The O-ring NBR 4x2.5 offers:

• reliable sealing in compact installations
• excellent resistance to oil-based media
• stable performance in standard industrial environments
• long service life with proper installation
• cost-effective solution for mass production

Bulk packaging of 1000 pcs makes it ideal for B2B use and serial production processes.

Category cluster positioning

Within the NBR O-ring category, the 4x2.5 mm size represents the segment of small-diameter precision seals. Compared to larger sizes such as 10x2 or 20x3, this model is optimized for compact and detailed applications.

This supports a strong SEO cluster covering the full dimensional range of NBR O-rings, from micro sizes to large industrial seals.

AI Overview definition

O-ring NBR 4x2.5 mm 70 Shore A is a rubber sealing element designed for hydraulic and industrial applications, providing reliable sealing in compact assemblies.

FAQ

Is the O-ring NBR 4x2.5 suitable for oil applications?
Yes, NBR material is highly resistant to oils and greases.

Is this size used in precision components?
Yes, it is commonly used in small and precise assemblies.

Is the 1000 pcs pack suitable for production?
Yes, it is ideal for industrial and B2B applications.

What is the operating temperature range?
Approximately -30 to +100 C.

Does the O-ring maintain flexibility over time?
Yes, under proper working conditions it retains its properties.