Product Overview
NL / NS metric ferrule nuts are precision-machined hydraulic retaining nuts designed to securely fasten bite-type ferrules onto metric hydraulic tubes, ensuring stable and leak-free tube connections in high-pressure hydraulic systems. As essential components in 24° cone tube fitting assemblies, these nuts provide consistent clamping force to lock ferrules firmly against the tube, maintaining reliable sealing performance even under demanding operating conditions.
Manufactured according to DIN 3861, DIN 2353, and ISO 8434 standards, NL and NS ferrule nuts are fully compatible with standard metric hydraulic tube fittings. Available in both Light Series (NL) and Heavy Series (NS), they are suitable for a wide range of pressure requirements and industrial applications.
Features & Advantages
Designed for harsh hydraulic working environments, NL / NS ferrule nuts offer excellent pressure resistance, vibration resistance, and long-term mechanical stability. Manufactured from high-quality carbon steel with precision-machined threads, they ensure uniform tightening force and reliable ferrule compression, helping prevent loosening or leakage during long-term operation.
These retaining nuts can withstand working pressures up to 630 bar (9000 PSI), making them suitable for demanding high-pressure hydraulic systems. Standard zinc-plated surface treatment provides enhanced corrosion resistance, while optional surface coatings such as zinc-nickel plating offer additional protection in humid, outdoor, or corrosive environments.
With strict manufacturing tolerances and excellent interchangeability, our ferrule nuts deliver stable quality, long service life, and reliable performance for global hydraulic applications.
Technical Specifications
Product Type: Hydraulic Ferrule Retaining Nut
Connection Type: DIN 24° Cone Tube Fitting
Standards: DIN 3861 / DIN 2353 / ISO 8434
Material: Carbon Steel
Surface Treatment: Zinc Plated / Zn-Ni Optional
Working Pressure: Up to 630 bar (9000 PSI)
Thread Type: Metric Thread
Available Series: Light Series (NL) / Heavy Series (NS)
Applicable Media: Hydraulic Oil, Lubricating Oil, Industrial Fluids
Available Sizes
Light Series (NL): 04LL – 42L
Heavy Series (NS): 06S – 38S
(Original dimension table can be placed here.)
Applications
NL / NS ferrule nuts are widely used in construction machinery, hydraulic power units, wind turbine hydraulic circuits, marine and offshore equipment, as well as industrial automation systems. Their robust construction and secure locking performance make them ideal for hydraulic systems operating under high pressure, vibration, and demanding environmental conditions.
Why Choose Us
As a professional hydraulic fitting manufacturer, we provide ferrule nuts with strict dimensional control, stable production quality, and reliable delivery capability. We also support OEM and customized production for special dimensions, thread types, and surface treatments to meet diverse customer requirements.
With competitive factory pricing, consistent product quality, and fast delivery for standard models, we help customers reduce procurement costs while ensuring dependable hydraulic system performance.
FAQ
Are these ferrule nuts compatible with DIN 2353 fittings?
Yes, all products comply with DIN 2353 and ISO 8434 standards.
Do you support custom specifications?
Yes, OEM and customized dimensions, threads, and coatings are available.
What surface treatments are available?
Standard zinc plating is available, with optional Zn-Ni and other anti-corrosion coatings.
The NL NS M ferrule nuts are precision-machined hydraulic components engineered to secure bite-type ferrules on metric tubes, delivering a vibration-resistant, leak-tight seal under pressures up to 630 bar (9000 PSI). Built to DIN 3861 / ISO 8434 specifications, they ensure consistent clamping force across both light (04LL–42L) and heavy (06S–38S) 24° taper connections, offering reliable performance for high-pressure industrial hydraulic systems
Compliant with DIN 3861, DIN 2353 / ISO 8434 standards for metric bite-type tube fittings, these NL NS M ferrule nuts ensure reliable, leak-tight connections by securing ferrules firmly against the tube, even under high pressure up to 630 bar (9000 PSI). Crafted from durable carbon steel, they feature precision-machined threads for consistent clamping force. Surface treatments like zinc plating enhance corrosion resistance, extending service life in harsh industrial environments.
Suitable for diverse industrial scenarios, the NL NS M ferrule nuts excel in construction machinery, wind turbine gearboxes, industrial hydraulic stations, and marine/offshore hydraulic systems handling oil or hydraulic fluid media. By combining standardized compatibility (light series 04LL–42L / heavy series 06S–38S), high-pressure resistance, and corrosion-resistant construction, they deliver consistent reliability for critical fluid connections. Designed for vibration resistance and long-term performance, these nuts embody engineering excellence for high-pressure hydraulic system requirements.
Description
Ningbo Fuke Hydraulic Machinery Co., Ltd.
