B Type Male - NPT

Millennium Coupling Company’s Male NPT threaded Universal B Type Claw Coupling is engineered for fast, secure, and leak-free connections in pneumatic systems. Designed to fully interchange with the U.S. Military Specification CID A-A-59553, these two-lug couplings are ideal for compressed air and water transfer in demanding industrial environments.

Whether you're working in oil & gas, mining, construction, agriculture, or manufacturing, our claw couplings deliver unmatched reliability, safety, and compatibility.

• Universal Compatibility: Fully interchangeable with other couplings conforming to CID A-A-59553 and the superseded WW-C-633D standard.

• Quick Connect/Disconnect: Quarter-turn twist-lock mechanism ensures rapid and secure hose connections.

• Robust Construction: Manufactured from investment cast carbon steel, zinc-plated for corrosion resistance.

• Leak-Free Seal: Precision-machined seal area with nitrile rubber or optional FKM seals for enhanced chemical resistance.

• Safety Locking Pin: Optional locking pin prevents accidental disconnection in high-vibration environments.

Standard - Interchangeable with CID A-A-59553 (Replaces WW-C-633D)

Material - ASTM A732 3A

Finish - Zinc-plated

Seal Material - Nitrile Rubber (NBR)

Working Pressure  -150 psi (1.03 MPa)

Burst Pressure - 600 psi (4.14 MPa)

Temperature Range - -35°C to +120°C (-30°F to +250°F)

Claw Distance - 42 mm (Universal fit)

Thread Type - NPT (ASME B1.20.1)

• Commonly used in Oil & Gas Market for air services

• Underground and surface mining

• Mineral processing plants

• Civil construction and infrastructure