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NBR O-Rings — Nitrile Shore 90 (N90)
NBR O-Rings — Nitrile Shore 90 (N90)
Black NBR (Nitrile Butadiene Rubber) O-rings, Shore hardness 90 — the high-hardness Nitrile grade for applications demanding superior extrusion resistance under high pressure. 17 cross-section groups, 395 size variants in AS568 and metric sizes. Where standard Shore 70 O-rings fail under pressure, N90 holds. Operating temperature: −30°C to +120°C.
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Black NBR (Nitrile Butadiene Rubber) O-rings, Shore hardness 90 — the high-hardness Nitrile grade for applications demanding superior extrusion resistance under high pressure. 17 cross-section groups, 395 size variants in AS568 and metric sizes. Where standard Shore 70 O-rings fail under pressure, N90 holds. Operating temperature: −30°C to +120°C.
NBR Shore 90 O-rings are the high-hardness variant of standard Nitrile rubber. The increased hardness provides superior extrusion resistance under high system pressures, making them essential for hydraulic cylinders operating above 100 bar, pneumatic systems with small clearances, and applications where standard Shore 70 O-rings tend to blow out.
ABAW stocks the full 395-size N90 range in Dubai — the hardest Nitrile grade for high-pressure hydraulic and pneumatic sealing across the UAE, GCC, and Africa.
Technical Specifications
| Property | Value |
|---|---|
| Material | Nitrile Butadiene Rubber (NBR / Buna-N) |
| Hardness (Shore A) | 90 ± 5 |
| Temperature Range | −30°C to +120°C |
| Standards | AS568 (inch) & Metric (mm) |
| CS Range | 1.02mm – 6.99mm (17 cross-section groups) |
| Total Size Variants | 395 sizes |
| Fluid Compatibility | Petroleum oils, hydraulic fluids, fuels, water |
| Colour | Black |
Typical values. Custom compounds and sizes available on request — contact us for bulk pricing.
Key Features & Benefits
- 395 size variants across 17 cross-section groups (1.02mm – 6.99mm CS)
- Shore 90 ± 5 hardness for maximum extrusion resistance
- Suited to hydraulic systems operating above 100 bar
- Handles pneumatic systems with tight sealing clearances
- Compatible with petroleum oils, hydraulic fluids, fuels and water
- Operating range of −30°C to +120°C
- Available in AS568 and metric sizing
- Standard black NBR / Buna-N compound
- Reduces blow-out failures common with softer Shore 70 grades
- Bulk stock held in Dubai for fast dispatch across the region
Typical Applications
High-pressure hydraulic systems
Oil & gas facilities
Heavy construction equipment
Industrial machinery
Marine hydraulic deck equipment
Pneumatic systems with tight clearances
Hydraulic cylinders
Valves & fittings
Industrial parks & manufacturing
Port & terminal equipment
NBR N90 O-Rings in Dubai, UAE — High-Hardness Nitrile Seals
ABAW stocks 395 NBR N90 O-ring size variants in Dubai — the hardest Nitrile grade for high-pressure hydraulic and pneumatic sealing across the UAE, GCC, and Africa.
NBR Shore 90 O-rings are the high-hardness variant of standard Nitrile rubber. The increased hardness provides superior extrusion resistance under high system pressures, making them essential for hydraulic cylinders operating above 100 bar, pneumatic systems with small clearances, and applications where standard Shore 70 O-rings tend to blow out.
NBR N90 O-rings are used in high-pressure hydraulic systems across UAE oil & gas facilities, heavy construction equipment throughout the Emirates, industrial machinery in Sharjah and Dubai Industrial Parks, and marine hydraulic deck equipment in Fujairah and Jebel Ali ports.