Nitrile (NBR) O-Rings – Fuel, Oil & General-Purpose Sealing
NBR (Nitrile Butadiene Rubber) O-rings are a top choice for sealing fuels, oils, air, and water in automotive, agricultural, and industrial systems. They're a versatile, cost-effective solution for low-to-mid temperature sealing.
Our nitrile O-rings are available in:
-
Wide range of metric sizes
-
All standard BS sizes (BS001–BS932)
- Hardness of 70 Shore A as standard
🛠️ Common Uses for Nitrile O-Rings
- Fuel & oil systems
- Hydraulic pumps & valves
- Water fittings
- Air compressors
- Brake systems
⚖️ Nitrile vs FKM vs Silicone – Quick Comparison
| Feature |
NBR (Nitrile) |
FKM (Viton®) |
Silicone |
| Temp Range |
–40 °C to +120 °C |
–20 °C to +200 °C |
–50 °C to +200 °C |
| Oil & Fuel Resistance |
Good |
Excellent |
Poor |
| Abrasion Resistance |
Excellent |
Good |
Poor |
| Chemical Resistance |
Moderate |
Excellent |
Limited |
| Cost |
Budget-friendly |
Premium |
Mid-range |
✅ Why Buy NBR O-Rings from SealWithSelo?
- Wide range or metric and imperial sizes – no MOQ
- Each o ring individually bagged
- Buy single items or bulk packs
- Next-day UK dispatch available
- Need a size not listed? Contact us – we’ll find it
