Description
Overview:
The PCL Instantair Coupling Male Thread R 1/2" (AC51JM) is a robust compressed-air fitting for building and garden machinery, workshop airlines, and general pneumatic installations. Made from durable steel, it provides a secure, leak-resistant connection between air supply lines and equipment such as impact wrenches, nailers, spray guns, and inflators. The male thread is R 1/2" (BSPT), which corresponds to a nominal 1/2 inch size (approximately 12.7 mm), giving broad compatibility with standard BSP pneumatic systems. Its compact hex form makes tightening straightforward in confined spaces, and the through-bore is engineered for efficient airflow to help maintain tool performance. Suitable for use on site or in the workshop, this fitting supports reliable day-to-day operation across a wide range of air-powered tools and machinery.
Key Features:
- Steel construction for strength and long service life in demanding environments
- Male thread R 1/2" (BSPT, nominal 12.7 mm) for common UK pneumatic setups
- Secure threaded connection helps minimise leaks and pressure loss
- Efficient internal bore supports steady airflow to air tools and equipment
- Hex body for easy tightening with standard spanners
- Compatible with BSP air hose tails, manifolds, and tool inlets using R 1/2"
- Simple to install and remove for routine maintenance and upgrades
- Compact design fits neatly into tight assemblies and airline runs
Typical Applications:
Used to connect compressors, air distribution lines, and tools in workshops, construction sites, and garden machinery maintenance. Common on impact wrenches, spray guns, nail guns, blow guns, tyre inflators, and pneumatic cylinders. Suitable for repairing or extending existing BSP airline systems and for integrating tools into fixed or mobile compressed-air setups.
Also known as:
Male air coupling, compressed air connector, BSPT male adaptor, R 1/2" pneumatic fitting, air hose connector, airline coupling, male thread coupling, steel air fitting.
Product Specifications
| L&S Part No. | AC51JM |
|---|---|
| Manufacturer | PCL |
| OEM No. | AC51JM |
| Unit of Sale | 1 |
| Machine Type | Handheld Pneumatic Tools |

