O-ring 54x3 NBR 90 ShA

Technical Specifications, Applications & Benefits of 54x3 O-ring NBR 90 ShA

The O-ring 54x3 NBR 90 ShA is a precision sealing ring with inner diameter 54 mm and cross-section 3 mm, constructed from nitrile rubber (NBR) with a hardness of 90 Shore A. Supplied in a pack of 100 units, this O-ring is engineered for high-performance sealing in industrial and mechanical systems.

Key Features & Benefits

• Material: NBR (Nitrile Rubber) - excellent resistance to oils, fuels, lubricants, and many industrial chemicals.

• Hardness: 90 ShA - firm, durable elastomeric performance with minimal deformation under pressure.

• Dimensions: 54x3 mm - widely accepted size in sealing applications for machinery, pumps, and engines.

• Bulk pack of 100 pcs - ideal for workshops, servicing, and B2B applications to reduce unit cost and ensure supply.

• Temperature range: typically -30 °C up to +90 °C, depending on working conditions.

• Use cases: hydraulic systems, fuel lines, pump seals, industrial machines, compressors, and general sealing tasks.

Customers globally search with terms like “54x3 O-ring NBR”, “54x3 nitrile seal”, “bulk O-ring pack 54x3”, “O-ring 54 mm x 3 mm 90 ShA”, “nitrile O-ring 54x3 90 Shore A”.

This O-ring variant combines dimension accuracy with high hardness, making it suitable for demanding sealing environments where tighter tolerances and chemical resistance are required.

FAQ - Frequently Asked Questions

Q: What does “90 ShA” signify?
A: “90 ShA” indicates the hardness of the elastomer (90 Shore A), meaning the material is relatively stiff and resistant to deformation under load.

Q: Why use NBR for O-rings?
A: NBR (nitrile rubber) is widely used for its strong resistance to oils, fuels, and lubricants, making it ideal in mechanical, hydraulic, and automotive applications.

Q: Why is this product sold in packs of 100?
A: The pack-of-100 format is tailored for B2B buyers and service centers, optimizing logistics, reducing cost per unit, and ensuring sufficient stock.

Q: What temperature range can this O-ring handle?
A: Typically from -30 °C to +90 °C, depending on operating pressure and additive compatibility.

Q: Can it be used in fuel or hydraulic systems?
A: Yes — due to its resistance to oils and fuels, it is often applied in those environments. Always confirm compatibility with specific fluid chemistry.

Q: Do you offer smaller pack sizes?
A: This particular listing is exclusively for the 100-piece pack to avoid overlap with other packaging variants and manage SEO differentiation.