DOT Fittings
National Hose & Accessory – DOT Compression Fittings for Secure Air Brake Connections
National Hose & Accessory offers DOT compression fittings engineered for safe, DOT-compliant air brake and pneumatic systems. Designed to meet FMVSS 571.106 specifications, these fittings deliver leak-free, vibration-resistant sealing in transportation and fleet applications where safety is critical.
Manufactured from precision-machined brass or steel, our DOT compression fittings provide corrosion resistance, long-term durability, and easy installation. Ideal for trucks, buses, and industrial vehicles, they ensure secure connections under pressure, vibration, and fluctuating temperatures.
With local inventory in Pasadena and distribution across Houston, Beaumont, and Corpus Christi, National Hose & Accessory offers fast access and technical expertise to keep fleets operating safely and efficiently.
Value Added Advantage:
DOT-certified compression fittings for air brake systems
Corrosion-resistant brass and steel construction
Leak-free, vibration-resistant performance in harsh conditions
Expert support for maintenance, retrofits, and OEM specifications
Choose National Hose & Accessory—your Houston supplier for DOT compression fittings that guarantee compliant, long-lasting pneumatic connections.







