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2.0mm CS

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

A general purpose, sulfur-cured Buna-N Nitrile O-Ring, the most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. More than 50% of the Orings sold are Buna-N Nitrile Orings, commonly used in hydraulic/pneumatic motors, cylinders, pumps and valves.

O-Ring Dimensions are defined by the cross section (CS) and the inside diameter (ID).

Size not listed, special requirements or large quantities please click this link to Request a Price Quote.




Image Model+ Item Name Stock Price Quantity Discounts
2mm X 1mm Metric Buna-N 70 O-ring N2.00X001

2mm X 1mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
891
$0.08

Add:
Min:  7
Quantity Discounts
7-416$0.08
417-2,499$0.06
2,500+$0.04
2mm X 2mm Metric Buna-N 70 O ring N2.00X002

2mm X 2mm Metric Buna-N 70 O ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
99
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 2.5mm Metric Buna-N 70 O ring N2.00X002.5

2mm X 2.5mm Metric Buna-N 70 O ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
5387
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 3mm Metric Buna-N 70 O-ring N2.00X003

2mm X 3mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
4926
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 3.5mm Metric Buna-N 70 O-ring N2.00X003.5

2mm X 3.5mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
102723
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 4mm Metric Buna-N 70 O-ring N2.00X004

2mm X 4mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
49643
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 4.5mm Metric Buna-N 70 O-ring N2.00X004.5

2mm X 4.5mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
102119
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 5mm Metric Buna-N 70 O-ring N2.00X005

2mm X 5mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
2724
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 5.5mm Metric Buna-N 70 O-ring N2.00X005.5

2mm X 5.5mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
5306
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 6mm Metric Buna-N 70 O-ring N2.00X006

2mm X 6mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
35361
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 6.5mm Metric Buna-N 70 O-ring N2.00X006.5

2mm X 6.5mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
3374
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 7mm Metric Buna-N 70 O-ring N2.00X007

2mm X 7mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
113990
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 7.5mm Metric Buna-N 70 O-ring N2.00X007.5

2mm X 7.5mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
2290
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 8mm Metric Buna-N 70 O-ring N2.00X008

2mm X 8mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
4030
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 8.5mm Metric Buna-N 70 O-ring N2.00X008.5

2mm X 8.5mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
89
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 9mm Metric Buna-N 70 O-ring N2.00X009

2mm X 9mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
8218
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 9.5mm Metric Buna-N 70 O-ring N2.00X009.5

2mm X 9.5mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
597
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 10mm Metric Buna-N 70 O-ring N2.00X010

2mm X 10mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
24136
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 10.5mm Metric Buna-N 70 O-ring N2.00X010.5

2mm X 10.5mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
348
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03
2mm X 11mm Metric Buna-N 70 O-ring N2.00X011

2mm X 11mm Metric Buna-N 70 O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
77798
$0.05

Add:
Min:  10
Quantity Discounts
10-624$0.05
625-3,333$0.04
3,334+$0.03


What are the most common O-ring compounds?

We stock O-Rings in over 20 different compounds and durometers the following six are the standard rubber materials in a range of durometers (Shore A) hardness to satisfy practically any service condition:

Buna-N O-Rings / Nitrile O-Rings / NBR: Nitrile (Buna-N) is the most widely used elastomer due to its excellent resistance to petroleum products, operating temperature range (-40°F to +257°F) and one of the best performance-to-cost values. It's an ideal material for aerospace, automotive, propane and natural gas applications. Special Hydrogenated Nitrile (HNBR) compounds can improve resistance to direct ozone, sunlight, and weather exposure while increasing temperature range to +300°F.
AS-568 Buna-N O-Rings | Metric Buna-N O-Rings

Viton® O-Rings / FKM: Fluorocarbon (Viton®) exhibits exceptional resistance to chemicals, oils, temperature extremes (-13°F to +446°F), low compression set, low gas permeability and excellent aging characteristics. Applications include: aircraft engines, automotive fuel handling systems, and chemical processing industries. FKM is also suitable for high vacuum applications. It is not recommended for exposure to ketones, alkalis, and Skydrol® fluids. Custom compounds are available with improved chemical and low temperature resistance.
AS-568 Viton® O-Rings | Metric Viton® O-Rings

Ethylene-Propylene / EPDM O-Rings: EPDM has outstanding resistance to heat, water and steam, alkali, mild acidic and oxygenated solvents, ozone, and sunlight (-40ºF to +275ºF); but it is not recommended for gasoline, petroleum oil and grease, and hydrocarbon environments. This popular rubber compound is usually the first choice for low torque drive belt applications.
AS-568 EPDM O-Rings | Metric EPDM O-Rings

Silicone O-Rings / VMQ: In the Silicone family, you will find compounds which are superior as static seals in extreme temperature conditions. Standard compounds handle operating temperatures -85º to +400ºF. Silicone compounds are popular in food and medical applications because they are very clean and do not impart odor or taste. Special Phenyl silicones can be used down to -148°F.
AS-568 Silicone O-Rings | Metric Silicone O-Rings

Neoprene® O-Rings / CR: Neoprene (-40º to +250ºF) is reasonably priced and features good resistance to petroleum oils, ozone, sunlight and oxygen aging, relatively low compression set, good resilience and outstanding physical toughness. It is the preferred sealing material for the refrigeration industry because of its resistance to ammonia and Freon®.
AS-568 Neoprene® O-Rings