O-Ring Information

O-Ring Size Chart Chemical Resistance O-Ring Compounds O-Ring Cut Length

Categories

AS568 Standard Inch O-Rings Metric O-Rings ↪ Buna-N Nitrile (NBR) Metric O-Rings 70 Duro ↪ 0.50mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 0.75mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 0.80mm CS ↪ 1.00mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 1.02mm CS ↪ 1.1mm CS ↪ 1.20mm CS ↪ 1.22mm CS ↪ 1.25mm CS ↪ 1.27mm CS ↪ 1.30mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 1.40mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 1.50mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 1.60mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 1.78mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 1.80mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 1.90mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 2.00mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 2.2mm CS ↪ 2.4mm CS ↪ 2.5mm CS ↪ 2.62mm CS Metric O-Rings ↪ 2.65mm CS ↪ 2.90mm CS ↪ 3.0mm CS ↪ 3.1mm CS ↪ 3.2mm CS ↪ 3.30mm CS ↪ 3.50mm CS ↪ 3.53mm CS ↪ 4.0mm CS ↪ 4.50mm CS Metric Buna-N O-Rings – Nitrile 70 Duro ↪ 4.8mm CS ↪ 5.0mm CS ↪ 5.33mm CS ↪ 5.7mm CS ↪ 6.0mm CS ↪ 6.5mm CS ↪ 6.99mm CS ↪ 7.0mm CS ↪ 8.0mm CS ↪ 8.4mm CS ↪ 9mm CS ↪ 9.5mm CS ↪ 11mm CS ↪ 12mm CS ↪ Buna-N Nitrile (NBR) Metric O-Rings 90 Durometer ↪ EPDM Metric O-Rings (EPR, EPM) Ethylene Propylene Diene Monomer ↪ FFKM Perfluoroelastomer Metric O-Rings ↪ HNBR O-Rings 70 Durometer Green/Black ↪ ISO 6149 Metric Tube Fitting O-Rings ↪ Japanese (JIS) O-rings ↪ PTFE O-Rings Polytetrafluoroethylene (AKA Teflon® O-Rings) ↪ Quad Lobe X-Ring Seals ↪ Silicone VQM Metric O-Rings ↪ Teflon Encapsulated O-rings ↪ Urethane Metric O-Rings ↪ Viton® Extreme ETP Chemical Resistant O-Rings ↪ Viton®/FKM Metric O-Rings (Fluorocarbon) 75/80 Duro ↪ Viton®/FKM Metric O-Rings (Fluorocarbon) 90 Duro ↪ Metric O-ring Kits OSK™ Assorted O-Ring Service Kits O-Ring Cord for Custom Seal Fabrication Vulcanized O-Rings – Custom-Made Precision Seals Olypsys® Cell Phone O-Ring Measurement Hydraulic Seals O-Ring Lubrication Products Oil Seals - Shaft Seals OSK™ Air Nailer O-Ring Kits OSK™ Hydraulic Cylinder Seal Kits OSK™ Industrial Gaskets and Seals OSK™ O-Ring Repair Kits OSK™ Sanitary & Brewery Gaskets OSK™ Spray Foam O-Rings for use with Graco®Super Lube® Online Store Cam and Groove Gaskets AKA Camlock Gaskets OSK™ OEM Replacement O-Rings OSK™ Custom O-Rings & Kits Featured Products ...

Information

About Us Shop by Brand Shipping & Returns Privacy Notice Conditions of Use Contact Us Order Status Site Map Newsletter Unsubscribe O-Ring Quotes Made Effortless

Buna-N Nitrile (NBR) Metric O-Rings 70 Duro

Buna-N Nitrile (NBR) Metric O-Rings in 70 durometer hardness offer versatile, reliable sealing solutions ideal for a wide range of hydraulic, pneumatic, automotive, and general industrial applications. Known for their exceptional resistance to petroleum-based oils, fuels, water, and common lubricants, these O-Rings provide outstanding durability and performance. Available in standardized metric sizes, they deliver consistent sealing capabilities, ensuring leak-proof performance under varying pressures and environments.

Operating temperature: -40° to +250°F (-40° to +121°C)

(image for) 0.50mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

0.50mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 0.75mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

0.75mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 0.80mm CS

(image for) 1.00mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

1.00mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 1.02mm CS

(image for) 1.1mm CS

(image for) 1.20mm CS

(image for) 1.22mm CS

(image for) 1.25mm CS

(image for) 1.27mm CS

(image for) 1.30mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

1.30mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 1.40mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

1.40mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 1.50mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

1.50mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 1.60mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

1.60mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 1.78mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

1.78mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 1.80mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

1.80mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 1.90mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

1.90mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 2.00mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

2.00mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 2.2mm CS

(image for) 2.4mm CS

(image for) 2.5mm CS

(image for) 2.62mm CS Metric O-Rings

2.62mm CS Metric O-Rings

(image for) 2.65mm CS

(image for) 2.90mm CS

(image for) 3.0mm CS

(image for) 3.1mm CS

(image for) 3.2mm CS

(image for) 3.30mm CS

(image for) 3.50mm CS

(image for) 3.53mm CS

(image for) 4.0mm CS

(image for) 4.50mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

4.50mm CS Metric Buna-N O-Rings – Nitrile 70 Duro

(image for) 4.8mm CS

(image for) 5.0mm CS

(image for) 5.33mm CS

(image for) 5.7mm CS

(image for) 6.0mm CS

(image for) 6.5mm CS

(image for) 6.99mm CS

(image for) 7.0mm CS

(image for) 8.0mm CS

(image for) 8.4mm CS

(image for) 9mm CS

(image for) 9.5mm CS

(image for) 11mm CS

(image for) 12mm CS

Copyright © 2025 The O-Ring Store, LLC
1847 Wilma Dr, Clarkston WA 99403
Phone 208-413-6377 - Fax 208-413-6719