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

Reliable sealing solutions with our 1.78mm cross-section (CS) metric Buna-N (Nitrile) O-Rings, specifically designed with a 70A durometer hardness. These versatile O-Rings offer excellent resistance to petroleum-based oils, hydraulic fluids, water, and a variety of industrial applications. Ideal for static and dynamic sealing environments, these seals deliver dependable performance, durability, and cost-effectiveness, making them the preferred choice for automotive, hydraulic, and general industrial applications.

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

Displaying 1 to 25 (of 80 Products)
Product Image Model Product Name Qty. Price Quantity Discounts
(image for) 1.78mm X 1.78mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X001.78
1.78mm X 1.78mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 539514
$0.090
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Min Qty:  34
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34-514$0.090
515-20,799$0.068
20,800-64,099$0.048
64,100+$0.039
(image for) 1.78mm X 2.57mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X002.57
1.78mm X 2.57mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 312967
$0.090
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Min Qty:  34
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34-514$0.090
515-20,799$0.068
20,800-64,099$0.048
64,100+$0.039
(image for) 1.78mm X 2.9mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X002.9
1.78mm X 2.9mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 146673
$0.320
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Min Qty:  10
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10-145$0.320
146-5,999$0.240
6,000$0.168
18,500+$0.135
(image for) 1.78mm X 3.17mm (NBR) Buna-N 70 Duro Metric O-Ring BS801 N1.78X003.17
1.78mm X 3.17mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 451
$0.300
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10-155$0.300
156-6,299$0.225
6,300$0.158
19,700+$0.127
(image for) 1.78mm X 3.2mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X003.2
1.78mm X 3.2mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 11274
$0.240
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Min Qty:  13
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13-194$0.240
195-7,899$0.180
7,900$0.126
24,800+$0.101
(image for) 1.78mm X 3.68mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X003.68
1.78mm X 3.68mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 127699
$0.090
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Min Qty:  34
Quantity Discounts
34-514$0.090
515-20,799$0.068
20,800-64,099$0.048
64,100+$0.039
(image for) 1.78mm X 4.47mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X004.47
1.78mm X 4.47mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 281803
$0.090
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Min Qty:  34
Quantity Discounts
34-514$0.090
515-20,799$0.068
20,800-64,099$0.048
64,100+$0.039
(image for) 1.78mm X 4.76mm (NBR) Buna-N 70 Duro Metric O-Ring BS802 N1.78X004.76
1.78mm X 4.76mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 34231
$0.240
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Min Qty:  13
Quantity Discounts
13-194$0.240
195-7,899$0.180
7,900$0.126
24,800+$0.101
(image for) 1.78mm X 5.28mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X005.28
1.78mm X 5.28mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 138582
$0.090
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Min Qty:  34
Quantity Discounts
34-514$0.090
515-20,799$0.068
20,800-64,099$0.048
64,100+$0.039
(image for) 1.78mm X 6.07mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X006.07
1.78mm X 6.07mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 2468350
$0.090
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Min Qty:  34
Quantity Discounts
34-514$0.090
515-20,799$0.068
20,800-64,099$0.048
64,100+$0.039
(image for) 1.78mm X 6.35mm (NBR) Buna-N 70 Duro Metric O-Ring BS803 N1.78X006.35
1.78mm X 6.35mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 0
$0.370
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Min Qty:  541
Quantity Discounts
541-1,258$0.370
1,259-5,099$0.278
5,100$0.195
16,000+$0.156
(image for) 1.78mm X 6.75mm (NBR) Buna-N 70 Duro Metric O-Ring BS610 N1.78X006.75
1.78mm X 6.75mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 10545
$0.370
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Min Qty:  9
Quantity Discounts
9-125$0.370
126-5,099$0.278
5,100$0.195
16,000+$0.156
(image for) 1.78mm X 7.65mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X007.65
1.78mm X 7.65mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 1466740
$0.090
Add:
Min Qty:  34
Quantity Discounts
34-514$0.090
515-20,799$0.068
20,800-64,099$0.048
64,100+$0.039
(image for) 1.78mm X 7.94mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X007.94
1.78mm X 7.94mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 3230
$0.500
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Min Qty:  6
Quantity Discounts
6-93$0.500
94-3,799$0.375
3,800$0.263
11,800+$0.211
(image for) 1.78mm X 8.73mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X008.73
1.78mm X 8.73mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 19239
$0.400
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Min Qty:  8
Quantity Discounts
8-116$0.400
117-4,799$0.300
4,800$0.210
14,900+$0.168
(image for) 1.78mm X 9.25mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X009.25
1.78mm X 9.25mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 73479
$0.090
Add:
Min Qty:  34
Quantity Discounts
34-514$0.090
515-20,799$0.068
20,800-64,099$0.048
64,100+$0.039
(image for) N1.78X009.52 (NBR) Buna-N 70 Duro Metric O-Ring N1.78X009.52
N1.78X009.52 (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 3591
$0.440
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Min Qty:  7
Quantity Discounts
7-106$0.440
107-4,299$0.330
4,300$0.231
13,500+$0.185
(image for) 1.78mm X 10.82mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X010.82
1.78mm X 10.82mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 1131490
$0.090
Add:
Min Qty:  34
Quantity Discounts
34-514$0.090
515-20,799$0.068
20,800-64,099$0.048
64,100+$0.039
(image for) 1.78mm X 11.11mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X011.11
1.78mm X 11.11mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 1844
$0.470
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Min Qty:  7
Quantity Discounts
7-99$0.470
100-3,999$0.353
4,000$0.248
12,600+$0.199
(image for) 1.78mm X 11.91mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X011.91
1.78mm X 11.91mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 41
$0.980
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Min Qty:  4
Quantity Discounts
4-47$0.980
48-1,899$0.735
1,900-6,099$0.515
6,100+$0.412
(image for) 1.78mm X 12.42mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X012.42
1.78mm X 12.42mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 1017440
$0.120
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Min Qty:  25
Quantity Discounts
25-388$0.120
389-15,899$0.090
15,900-48,999$0.063
49,000+$0.051
(image for) 1.78mm X 14mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X014
1.78mm X 14mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 1291140
$0.120
Add:
Min Qty:  25
Quantity Discounts
25-388$0.120
389-15,899$0.090
15,900-48,999$0.063
49,000+$0.051
(image for) 1.78mm X 15.6mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X015.6
1.78mm X 15.6mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 567991
$0.120
Add:
Min Qty:  25
Quantity Discounts
25-388$0.120
389-15,899$0.090
15,900-48,999$0.063
49,000+$0.051
(image for) 1.78mm X 17.17mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X017.17
1.78mm X 17.17mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 186279
$0.120
Add:
Min Qty:  25
Quantity Discounts
25-388$0.120
389-15,899$0.090
15,900-48,999$0.063
49,000+$0.051
(image for) 1.78mm X 18.77mm (NBR) Buna-N 70 Duro Metric O-Ring N1.78X018.77
1.78mm X 18.77mm (NBR) Buna-N 70 Duro 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 products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and Acrylonitirle. It has a temperature range of -40F to +250F and is...
 In Stock: 379230
$0.120
Add:
Min Qty:  25
Quantity Discounts
25-388$0.120
389-15,899$0.090
15,900-48,999$0.063
49,000+$0.051
Displaying 1 to 25 (of 80 Products)
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