Description
Overview:
These metric rubber O-rings are general-purpose sealing rings for fluid and air applications in tools and machinery. Each ring has a 7 mm internal diameter (I.D.) and a 2 mm cross-section thickness, giving an approximate outer diameter of 11 mm. Made from durable black rubber, they compress to create a tight, reliable seal in static housings and fittings. Commonly used in plumbing joints, automotive pipework, small engines, compressors and light machinery, they help prevent leaks and maintain pressure. Supplied in a pack of 50 for convenient maintenance and spares management. Easy to fit by hand with a light smear of compatible lubricant if required. Manufacturer Part Number (MPN): 903 1289.
Key Features:
- 7 mm I.D. and 2 mm cross-section for compact, close-tolerance seals
- Approx. 11 mm outer diameter for quick size identification
- Durable rubber construction for consistent sealing performance
- Round cross-section suits standard metric O-ring grooves
- Helps prevent leaks in low to moderate pressure systems
- Suitable for water, air and general-purpose sealing duties
- Pack of 50 supports routine maintenance and bulk replacements
- Smooth surface finish for easy installation and good compression set
- Black colour for simple visual matching with existing seals
- Cost-effective choice for workshops, trades and DIY users
Typical Applications:
Sealing push-fit and threaded plumbing joints, automotive fuel and coolant connections, small pumps, compressors, pneumatic fittings, garden machinery, and light industrial equipment. Useful for maintenance schedules, repair kits, and keeping service vans stocked with the most common 7 mm I.D. size.
Also known as:
O-ring seal, sealing ring, metric O-ring, rubber sealing washer (round section), circular gasket, ring seal, metric seal ring. These terms are often used interchangeably for round cross-section rubber seals used to stop leaks at joints and interfaces.
Product Specifications
| L&S Part No. | 903 1289 |
|---|---|
| Unit of Sale | Pack of 50 |
| Key Features | - 7 mm I.D. and 2 mm cross-section for precise sealing - Approx. 11 mm outer diameter for easy identification - Durable rubber ensures consistent sealing performance - Pack of 50 for maintenance and replacements - Suitable for water, air, and general-purpose sealing |
