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Description
Coned Tailpiece 7.9mm (5/16") Hose Barb
Rp 3/8" Thread — Precision Brass Fitting
A workshop-grade coned tailpiece engineered for reliable, leak-free pneumatic connections. Precision-machined from solid brass with a nickel-plated finish for lasting performance in demanding environments.
Built for Precision. Designed for Reliability.
This coned tailpiece is the definitive choice for professional pneumatic assemblies requiring a secure, vibration-resistant hose connection. Designed to pair with an Rp 3/8" union nut, the 7.9mm (5/16") hose barb delivers a firm mechanical grip on compatible air line hose, eliminating the risk of pull-out under pressure.
Machined from high-grade brass and finished with a nickel plating, this fitting resists corrosion, withstands workshop conditions, and maintains dimensional accuracy across its service life. Whether used in a fixed compressed air installation or a portable pneumatic circuit, it performs with the consistency that professional environments demand.
Why This Fitting Belongs in Your Installation
CNC-machined to tight tolerances for consistent thread engagement and a reliable, repeatable seal every time.
Nickel-plated brass construction resists moisture, oils, and workshop contaminants for extended service life.
The coned barb profile locks onto 7.9mm (5/16") I.D. hose under compression, preventing pull-out under working pressure.
Rp 3/8" parallel internal thread ensures compatibility with standard union nuts and pneumatic system components.
Minimal footprint makes this fitting ideal for tight installations, panel-mounted assemblies, and space-constrained rigs.
Held in UK stock and dispatched promptly, ensuring your project or production line is never held up waiting for parts.
Full Technical Data
| Fitting Type | Coned Tailpiece (Hose Barb) |
| Hose Barb Size | 7.9mm (5/16") Internal Diameter |
| Thread Type | Rp 3/8" (Parallel Internal Thread, ISO 228) |
| Compatible Union Nut | Rp 3/8" Union Nut (required for assembly) |
| Body Material | Precision-Machined Brass |
| Finish | Nickel-Plated |
| Connection Method | Coned Compression with Union Nut |
| Application | Compressed Air Pneumatic Systems |
| Hose Compatibility | 7.9mm (5/16") I.D. Flexible Air Line Hose |
| Barcode (EAN) | AC015014875370194 |
| Stock Location | United Kingdom |
This tailpiece requires an Rp 3/8" union nut to complete the assembly. The union nut is not included and must be ordered separately. Ensure your hose I.D. measures 7.9mm (5/16") before ordering to guarantee a correct mechanical fit.
Where This Fitting Is Used
This coned tailpiece is suited to a wide range of professional pneumatic installations, including workshop compressed air distribution systems, industrial production line air circuits, vehicle workshop air tool supply lines, and portable compressor hose assemblies. It is compatible with standard 7.9mm (5/16") I.D. flexible air line hose and integrates directly into any system using Rp 3/8" threaded union nut connections.
The coned tailpiece and union nut assembly method is widely regarded as one of the most reliable hose termination techniques in pneumatic engineering, offering a mechanically secure connection that resists both pull-out and rotational loosening under sustained working pressure.
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