Stainless Steel Brake Hard Line Tube Nut

Precision-engineered stainless steel tube nut designed to connect -3AN fittings to 3/16” (4.75mm) hard brake line, making it ideal for custom brake line fabrication and performance upgrades.

Manufactured by 247 Hose & Fittings, this fitting ensures a strong, leak-free connection in critical braking systems where reliability and safety are essential.

Key Features:

• Converts -3AN to 3/16” hard brake line
• Manufactured from high-quality stainless steel (S/S)
• Precision CNC-machined for exact fitment
• Designed for double-flared hard line applications
• Corrosion-resistant for long-term durability
• Suitable for high-pressure brake systems

Performance Benefits:

Reliable Brake System Sealing - Ensures a tight, leak-free connection under extreme hydraulic pressure.

Perfect for Custom Fabrication - Allows easy integration of AN lines into factory-style hard line systems.

High Strength Construction - Stainless steel design resists corrosion, fatigue, and harsh environments.

Motorsport Proven - Ideal for track, drift, and high-performance street applications.

Engineering Overview:

Designed specifically for brake systems, this tube nut provides a secure transition from AN hose systems to traditional 3/16” hardline, commonly used in OEM brake setups.

The stainless steel construction ensures durability under constant pressure cycles, heat, and exposure to brake fluid—making it a critical component for safe and reliable braking performance.

Applications:

• Custom brake line fabrication
• Brake system upgrades and conversions
• AN brake hose to hardline transitions
• Motorsport and performance braking systems
• Restoration and OEM replacement setups

Perfect For:

• Performance and track vehicles
• Custom brake plumbing builds
• Drift and circuit racing setups
• Workshop and professional installations
• Street cars requiring upgraded brake lines