Overview
The PT HBB10 cam groove coupling is a flexible quick-disconnect hose fitting manufactured by PT Coupling Company. This 1-inch coupler combines an aluminum body with brass (“HB”) cam arms, providing a reliable connection point for hydraulic hoses, pneumatic lines, and fluid transfer applications. PT HBB10 units comply with Commercial Item Description A-A-59326D, the current US standard for cam-locking quick-disconnect couplings, ensuring interchangeability with standard industry adapters.
Key Features
- Quick-disconnect design: Simple and reliable means of connecting and disconnecting hoses quickly and without tools.
- Brass cam arms: Brass cam arms resist corrosion, have ductility at high temperatures and low magnetic permeability, and serve as the mechanism by which the coupler locks into the adapter groove.
- Aluminum body: Lightweight and economical, with good abrasion resistance and fair corrosion and chemical resistance.
- A-A-59326D compliant: The specification A-A-59326 replaced MIL-C-27487, ensuring standardized performance and interchangeability.
- Multiple fluid compatibility: Use with water, hydraulic oil, coolants, gasoline, and petroleum products.
- Made in USA: Made in the USA.
Technical Specifications
The HBB10 is the 1-inch aluminum coupler variant in PT Coupling’s Basic Standard lineup. Brass cam arms provide superior corrosion resistance in marine and chemical environments while maintaining the lightweight economy of aluminum construction. The coupler body accommodates standard male adapters with matching 1-inch groove diameter. Operating temperature range extends down to -150°F. Pressure rating and exact port connections vary by paired adapter; consult the adapter part number for complete system specifications.
Typical Applications
- Agricultural: Fuel delivery, grain movement, and equipment fueling systems.
- Industrial hydraulics: Quick disconnects for hose assemblies in production equipment, material handling, and plant utilities.
- Fluid transfer: Wine transfer, water systems, coolant distribution, and petroleum product handling.
- Portable equipment: Emergency vehicles, mobile units, and field service rigs where frequent connection/disconnection is required.
- Construction & mining: Equipment fueling and fluid management in remote or temporary installations.
Compatibility & Replacements
Compatible With
- PT Coupling 1-inch male adapters (all types: Type A, Type B, Type C, Type D, Type E, Type F)
- Standard cam-lock hose fittings per A-A-59326D specification
- Hydraulic and pneumatic fluid systems rated for the coupler’s material compatibility
- Hose assemblies with 1-inch camlock male studs
Replaces / Drop-In Replacement For
PT Coupling manufactures several 1-inch coupler models with varying material and feature combinations. The HBB10 (aluminum body, brass cam arms) is direct replacement for equivalent OEM and equivalent aftermarket brass-arm aluminum couplers meeting A-A-59326D. Verify exact adapter pairing and operating conditions with your system integrator before installation to ensure pressure rating and seal compatibility.
Works With
- All 1-inch male adapter types (Type A, B, C, D, E, F) per A-A-59326D
- Standard buna-n and viton seals in matching adapters
- Hydraulic systems, coolant loops, fuel delivery, and water circulation networks
- Portable and permanent hose assemblies requiring quick-disconnect capability



