In demanding mechanical systems, even the smallest component can make a big impact. Custom nitrile washers are a perfect example – engineered for sealing, cushioning, and protection, they play a critical role in reducing wear and preventing leaks. At Stephens Gaskets, we specialise in manufacturing nitrile rubber components that deliver long-term performance across engines, hydraulics, and industrial assemblies.
This blog explores how nitrile’s unique properties make it one of the most dependable materials for washers, why going custom can increase equipment life, and where engine sealing washers and hydraulic rubber washers are most effectively used.
Why Choose Nitrile for Washers?
Nitrile rubber, also known as NBR (Nitrile Butadiene Rubber), is a synthetic elastomer known for its exceptional oil resistance, tensile strength, and sealing capability. It is widely used in mechanical and fluid-handling systems where exposure to oils, fuels, and pressure is common.
Key properties of nitrile include:
- Excellent resistance to oil, fuel, and hydraulic fluids
- Good mechanical strength and compression set resistance
- Operating temperature range of -30°C to +120°C
- Cost-effective and highly machinable
These attributes make nitrile ideal for washers in high-performance sealing applications, especially when manufactured to custom dimensions.
Benefits of Custom Nitrile Washers
1. Precision Fit Prevents Leaks
A washer designed specifically for the job reduces the chance of oil or fluid escape. Tight tolerances mean better sealing at joints and interfaces.
2. Reduces Wear on Mating Components
Custom sizing ensures the washer protects surfaces evenly, helping to extend the lifespan of housings, bolts, and seals.
3. Vibration and Impact Absorption
Nitrile provides excellent shock resistance. In engines and hydraulic systems, it cushions moving components and protects against fatigue failure.
4. Customised for Specific Pressures and Fluids
Different grades of nitrile are available depending on temperature, fluid type, and load – ensuring each washer meets your exact application requirements.
Common Applications of Nitrile Rubber Components
At Stephens Gaskets, we manufacture custom nitrile washers and related components for a variety of industries:
- Automotive and diesel engines
- Hydraulic systems and pumps
- Fuel delivery systems
- Oil and gas sealing solutions
- Agricultural and industrial equipment
- Power transmission assemblies
Whether you’re sealing engine casings or stabilising hydraulic joints, nitrile rubber components are proven to increase equipment longevity and operational reliability.
Custom Design and Manufacturing Options
As specialists in engine sealing washers and hydraulic rubber washers, we offer full design-to-delivery services including:
- Thicknesses from 0.5mm to 10mm+
- OD/ID to suit standard or bespoke fittings
- Flat, stepped, or profiled washer shapes
- Oil-resistant and high-temp nitrile grades (up to 120°C)
- Small and large volume runs – ideal for both R&D and production
We can manufacture from a sample, drawing, or CAD file, with fast turnaround from our UK-based facility.
Learn more about nitrile rubber components or explore the washer itself for additional technical insight.
Why Choose Stephens Gaskets?
With over 70 years of engineering experience, Stephens Gaskets is a leading UK manufacturer of custom nitrile washers for industrial, automotive, and fluid-handling sectors.
We offer:
- Precision machining from drawing or sample
- ISO 9001-certified UK production
- Material advice for temperature, fluid, and pressure variables
- Rapid prototyping and production scale
- Support for OEMs, MRO specialists, and engineers
Our washers aren’t just cut to size – they’re cut to perform.
When to Specify Custom Nitrile Washers
Choose nitrile when:
- You need a washer that resists oil, fuel, or hydraulic fluid
- Vibration or movement is present in the joint
- The application requires durable, flexible sealing
- You want to prevent long-term wear or leakage
- Your project involves custom fittings or non-standard dimensions
Let us help you develop a sealing solution that extends equipment life and boosts performance.
Frequently Asked Questions
1. Are nitrile washers suitable for high-pressure sealing?
Yes – when specified and manufactured correctly, nitrile washers offer excellent performance under moderate to high pressure in hydraulic and fuel systems.
2. Can I get nitrile washers resistant to biofuels or additives?
Absolutely. We supply nitrile grades with enhanced chemical resistance for compatibility with a wide range of oils and fluids.
3. Do you offer prototype services?
Yes. We support design development with one-off prototypes and small production batches.
4. Can I use nitrile washers in outdoor applications?
Yes, though for long-term UV or ozone exposure, alternative elastomers such as EPDM may be recommended. For enclosed systems, nitrile is ideal.
Final Thoughts: Better Sealing, Longer Life
Custom nitrile washers are a simple, cost-effective way to improve the durability and performance of complex equipment. With tailored sizing, material selection, and expert design input, Stephens Gaskets helps customers eliminate leaks, reduce wear, and extend the service life of their machines.
Whether you need a single seal or thousands of precision washers, we’re ready to deliver high-quality nitrile rubber components – on time and to spec.