Description
Overview:
This Malleable Male-Female Reducing Hex Bush is a compact, durable pipe fitting for adapting from a 1/2 inch (12.7 mm) male BSP thread to a 3/8 inch (9.53 mm) female BSP thread. Made from tough malleable iron, it provides a reliable connection where a step-down in size is needed without adding unnecessary length to the run. The hexagonal body allows firm tightening with a spanner for a secure, leak-resistant joint. Commonly used across plumbing, heating, and workshop air systems, it suits both site work and domestic jobs where British Standard Pipe threads are present on tools, machines, or fixed installations. A practical choice for repairs, upgrades, and new installs, it helps maintain tidy layouts and consistent flow. MPN: 383 128.
Key Features:
- 1/2 inch (12.7 mm) male to 3/8 inch (9.53 mm) female BSP, ideal for size reduction between common pipework and fittings
- Malleable iron construction for strength under mechanical stress and temperature variation
- Hexagonal body for easy installation and removal with a standard spanner
- Compact reducer keeps assemblies neat and minimises added length and weight
- Compatible with BSP systems used on plumbing, pneumatic, and general service lines
- Smooth internal transition helps maintain consistent flow when stepping down in size
- Reliable sealing when used with appropriate thread sealant or PTFE tape
- Suitable for both workshop and on-site use in residential, commercial, and light industrial settings
- Cost-effective way to adapt existing components without replacing full assemblies
- Resists everyday wear and corrosion for long service life when correctly installed
Typical Applications:
Commonly used to connect 1/2 inch BSP male outlets to 3/8 inch BSP female fittings on water supply lines, heating circuits, manifolds, valves, gauges, and pneumatic equipment. Useful in plant rooms, garages, workshops, and on construction sites for adapting hoses, regulators, and ancillary equipment while maintaining a secure, serviceable connection.
Also known as:
Reducing bush, hex bush, hex reducing bushing, male-to-female reducer, BSP hex reducer, threaded bush, pipe reducer, pipe bushing, BSP adapter, thread reducer.
Product Specifications
| L&S Part No. | 383 128 |
|---|---|
| Unit of Sale | 1 |
| Key Features | - 1/2 inch male to 3/8 inch female BSP thread - Malleable iron construction for durability - Hexagonal body for easy spanner tightening - Compact design minimises added length - Compatible with BSP plumbing and pneumatic systems |
