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1.78mm 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 Qty. Price Quantity Discounts
1.78mm X 1.78mm Metric Buna-N 70 O-ring N1.78X001.78

1.78mm X 1.78mm 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...
65940
$0.03

Add:
Min:  17
Quantity Discounts
17-33,333$0.03
33,334-124,999$0.02
125,000+$0.02
1.78mm X 2.57mm Metric Buna-N 70 O-ring N1.78X002.57

1.78mm X 2.57mm 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...
436054
$0.03

Add:
Min:  17
Quantity Discounts
17-499$0.03
500-3,333$0.02
3,334+$0.02
1.78mm X 2.9mm Metric Buna-N 70 O-ring N1.78X002.9

1.78mm X 2.9mm 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...
515407
$0.03

Add:
Min:  17
Quantity Discounts
17-1,249$0.03
1,250-4,999$0.02
5,000+$0.02
1.78mm X 3.17mm Buna-N 70 Metric O-ring BS801 N1.78X003.17

1.78mm X 3.17mm Buna-N 70 Metric O-ring BS801

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$0.12

Add:
Min:  5
Quantity Discounts
5-277$0.12
278-1,666$0.09
1,667+$0.06
1.78mm X 3.2mm Metric Buna-N 70 O-ring N1.78X003.2

1.78mm X 3.2mm 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...
12512
$0.09

Add:
Min:  5
Quantity Discounts
5-277$0.09
278-1,666$0.07
1,667+$0.05
1.78mm X 3.68mm Metric Buna-N 70 O-ring N1.78X003.68

1.78mm X 3.68mm 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...
238403
$0.03

Add:
Min:  17
Quantity Discounts
17-1,249$0.03
1,250-4,999$0.02
5,000+$0.02
1.78mm X 4.47mm Metric Buna-N 70 O-ring N1.78X004.47

1.78mm X 4.47mm 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...
265000
$0.03

Add:
Min:  17
Quantity Discounts
17-1,249$0.03
1,250-4,999$0.02
5,000+$0.02
1.78mm X 4.76mm Buna-N 70 Metric O-ring BS802 N1.78X004.76

1.78mm X 4.76mm Buna-N 70 Metric O-ring BS802

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
2728
$0.09

Add:
Min:  5
Quantity Discounts
5-277$0.09
278-1,666$0.07
1,667+$0.05
1.78mm X 5.28mm Metric Buna-N 70 O-ring N1.78X005.28

1.78mm X 5.28mm 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...
258178
$0.03

Add:
Min:  17
Quantity Discounts
17-1,249$0.03
1,250-4,999$0.02
5,000+$0.02
1.78mm X 6.07mm Metric Buna-N 70 O-ring N1.78X006.07

1.78mm X 6.07mm 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...
223229
$0.03

Add:
Min:  17
Quantity Discounts
17-1,249$0.03
1,250-4,999$0.02
5,000+$0.02
1.78mm X 6.35mm Buna-N 70 Metric O-ring BS803 N1.78X006.35

1.78mm X 6.35mm Buna-N 70 Metric O-ring BS803

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
1864
$0.14

Add:
Min:  10
Quantity Discounts
10-227$0.14
228-1,428$0.11
1,429+$0.07
1.78mm X 6.75mm Buna-N 70 Metric O-ring BS610 N1.78X006.75

1.78mm X 6.75mm Buna-N 70 Metric O-ring BS610

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
870
$0.14

Add:
Min:  4
Quantity Discounts
4-227$0.14
228-1,428$0.11
1,429+$0.07
1.78mm X 7.65mm Metric Buna-N 70 O-ring N1.78X007.65

1.78mm X 7.65mm 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...
282976
$0.03

Add:
Min:  17
Quantity Discounts
17-1,249$0.03
1,250-4,999$0.02
5,000+$0.02
N1.78X007.94 Buna-N Nitrile 70 Metric O-ring N1.78X007.94

N1.78X007.94 Buna-N Nitrile 70 Metric O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
399
$0.20

Add:
Min:  3
Quantity Discounts
3-166$0.20
167-999$0.15
1,000+$0.10
N1.78X008.73 Buna-N Nitrile 70 Metric O-ring N1.78X008.73

N1.78X008.73 Buna-N Nitrile 70 Metric O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
5725
$0.16

Add:
Min:  4
Quantity Discounts
4-208$0.16
209-1,249$0.12
1,250+$0.08
1.78mm X 9.25mm Metric Buna-N 70 O-ring N1.78X009.25

1.78mm X 9.25mm 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...
256617
$0.03

Add:
Min:  17
Quantity Discounts
17-1,249$0.03
1,250-4,999$0.02
5,000+$0.02
N1.78X009.52 Buna-N Nitrile 70 Metric O-ring N1.78X009.52

N1.78X009.52 Buna-N Nitrile 70 Metric O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
5876
$0.17

Add:
Min:  3
Quantity Discounts
3-192$0.17
193-1,111$0.13
1,112+$0.09
1.78mm X 10.82mm Metric Buna-N 70 O-ring N1.78X010.82

1.78mm X 10.82mm 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...
256228
$0.03

Add:
Min:  17
Quantity Discounts
17-1,249$0.03
1,250-4,999$0.02
5,000+$0.02
1.78mm X 11.11mm Buna-N Nitrile 70 Metric O-ring N1.78X011.11

1.78mm X 11.11mm Buna-N Nitrile 70 Metric O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
314
$0.18

Add:
Min:  3
Quantity Discounts
3-178$0.18
179-1,111$0.14
1,112+$0.09
1.78mm X 11.91mm Buna-N Nitrile 70 Metric O-ring N1.78X011.91

1.78mm X 11.91mm Buna-N Nitrile 70 Metric O-ring

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
138
$0.39

Add:
Min:  2
Quantity Discounts
2-86$0.39
87-499$0.29
500+$0.20