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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 Stock 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...
51495
$0.03

Add:
Min:  17
Quantity Discounts
17-1,555$0.03
1,556-9,999$0.02
10,000+$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...
392766
$0.03

Add:
Min:  17
Quantity Discounts
17-1,555$0.03
1,556-9,999$0.02
10,000+$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...
421936
$0.03

Add:
Min:  17
Quantity Discounts
17-1,555$0.03
1,556-9,999$0.02
10,000+$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...
1121
$0.12

Add:
Min:  5
Quantity Discounts
5-388$0.12
389-2,499$0.09
2,500+$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...
12232
$0.09

Add:
Min:  5
Quantity Discounts
5-518$0.09
519-3,333$0.07
3,334+$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...
193789
$0.03

Add:
Min:  17
Quantity Discounts
17-1,555$0.03
1,556-9,999$0.02
10,000+$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...
107503
$0.03

Add:
Min:  17
Quantity Discounts
17-1,555$0.03
1,556-9,999$0.02
10,000+$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...
463
$0.09

Add:
Min:  5
Quantity Discounts
5-518$0.09
519-3,333$0.07
3,334+$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...
200901
$0.03

Add:
Min:  17
Quantity Discounts
17-1,555$0.03
1,556-9,999$0.02
10,000+$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...
21260
$0.03

Add:
Min:  17
Quantity Discounts
17-1,555$0.03
1,556-9,999$0.02
10,000+$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...
1536
$0.14

Add:
Min:  10
Quantity Discounts
10-333$0.14
334-2,142$0.11
2,143+$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...
363
$0.14

Add:
Min:  4
Quantity Discounts
4-333$0.14
334-2,142$0.11
2,143+$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...
112238
$0.03

Add:
Min:  17
Quantity Discounts
17-1,555$0.03
1,556-9,999$0.02
10,000+$0.02
1.78mm X 7.94mm Buna-N 70 Metric O-Ring N1.78X007.94

1.78mm X 7.94mm Buna-N 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...
133
$0.20

Add:
Min:  3
Quantity Discounts
3-233$0.20
234-1,499$0.15
1,500+$0.10
1.78mm X 8.73mm Buna-N 70 Metric O-Ring N1.78X008.73

1.78mm X 8.73mm Buna-N 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...
3118
$0.16

Add:
Min:  4
Quantity Discounts
4-291$0.16
292-1,874$0.12
1,875+$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...
151933
$0.03

Add:
Min:  17
Quantity Discounts
17-1,555$0.03
1,556-9,999$0.02
10,000+$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...
5621
$0.17

Add:
Min:  3
Quantity Discounts
3-274$0.17
275-1,764$0.13
1,765+$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...
187333
$0.03

Add:
Min:  17
Quantity Discounts
17-1,555$0.03
1,556-9,999$0.02
10,000+$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...
173
$0.18

Add:
Min:  3
Quantity Discounts
3-259$0.18
260-1,666$0.14
1,667+$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...
92
$0.39

Add:
Min:  2
Quantity Discounts
2-119$0.39
120-769$0.29
770+$0.20