Air King 4-Lug 1 1/2" Female NPT

Engineered for heavy-duty pneumatic applications, the Air King® 4-Lug Female NPT Coupling provides a secure and universal connection for compressed air systems. With its 4-lug design, this fitting offers enhanced grip and durability compared to standard 2-lug couplings — ideal for high-vibration environments and larger hose sizes.

Key Features:

4-Lug Universal Design: Ensures a strong, stable connection and is interchangeable with other Air King-style couplings.

Female NPT Threaded End: Connects easily to threaded pipe or fittings, creating a tight, leak-resistant seal.

Heavy-Duty Construction: Made from high-quality materials to withstand demanding industrial and construction use.

Safety Clip Compatible: Includes locking holes for use with safety clips or wires to prevent accidental disconnection.

Wide Working Pressure Range: Designed for use in compressed air, water, and steam lines up to 150 PSI (at ambient temperatures).

Applications:

Compressed air systems

Pneumatic tool lines

Industrial and construction air hose setups

Mining and quarry environments

Important: Air King® couplings are not to be used with steam service. Always use a safety clip or wire to secure the connection.