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O-Rings

3.1mm 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
3.1mm X 24.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G25) N3.10X024.4

3.1mm X 24.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G25)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
3,761
$0.15

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Min Qty:  7
Quantity Discounts
7-88$0.15
89-1,333$0.113
1,334+$0.075
3.1mm X 29.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G30) N3.10X029.4

3.1mm X 29.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G30)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
2,047
$0.14

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Min Qty:  8
Quantity Discounts
8-95$0.14
96-1,428$0.105
1,429+$0.07
3.1mm X 34.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G35) N3.10X034.4

3.1mm X 34.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G35)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
1,130
$0.16

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Min Qty:  7
Quantity Discounts
7-83$0.16
84-1,249$0.12
1,250+$0.08
3.1mm X 39.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G40) N3.10X039.4

3.1mm X 39.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G40)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
1,864
$0.18

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Min Qty:  6
Quantity Discounts
6-74$0.18
75-1,111$0.135
1,112+$0.09
3.1mm X 44.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G45) N3.10X044.4

3.1mm X 44.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G45)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
2,465
$0.21

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Min Qty:  5
Quantity Discounts
5-63$0.21
64-952$0.158
953+$0.105
3.1mm X 49.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G50) N3.10X049.4

3.1mm X 49.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G50)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
3,046
$0.24

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Min Qty:  5
Quantity Discounts
5-55$0.24
56-833$0.18
834+$0.12
3.1mm X 51.5mm (NBR) Buna-N 70 Duro Metric O-Ring N3.10X051.5

3.1mm X 51.5mm (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...
57
$4.70

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Quantity Discounts
1-4$4.70
5-49$3.525
50+$2.35
3.1mm X 54.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G55) N3.10X054.4

3.1mm X 54.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G55)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
1,358
$0.30

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Min Qty:  4
Quantity Discounts
4-44$0.30
45-666$0.225
667+$0.15
3.1mm X 57.4mm (NBR) Buna-N 70 Duro Metric O-Ring N3.10X057.4

3.1mm X 57.4mm (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...
234
$0.67

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Min Qty:  2
Quantity Discounts
2-19$0.67
20-298$0.503
299+$0.335
3.1mm X 59.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G60) N3.10X059.4

3.1mm X 59.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G60)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
172
$0.31

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Min Qty:  4
Quantity Discounts
4-43$0.31
44-645$0.233
646+$0.155
3.1mm X 64.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G65) N3.10X064.4

3.1mm X 64.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G65)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$0.33

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Min Qty:  4
Quantity Discounts
4-40$0.33
41-606$0.248
607+$0.165
3.1mm X 69.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G70) N3.10X069.4

3.1mm X 69.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G70)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
161
$0.37

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Min Qty:  3
Quantity Discounts
3-36$0.37
37-540$0.278
541+$0.185
3.1mm X 74.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G75) N3.10X074.4

3.1mm X 74.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G75)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
221
$0.38

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Min Qty:  3
Quantity Discounts
3-35$0.38
36-526$0.285
527+$0.19
3.1mm X 79.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G80) N3.10X079.4

3.1mm X 79.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G80)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
803
$0.40

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Min Qty:  3
Quantity Discounts
3-33$0.40
34-499$0.30
500+$0.20
3.1mm X 84.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G85) N3.10X084.4

3.1mm X 84.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G85)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
33
$0.49

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Min Qty:  3
Quantity Discounts
3-27$0.49
28-408$0.368
409+$0.245
3.1mm X 89.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G90) N3.10X089.4

3.1mm X 89.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G90)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
78
$0.80

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Min Qty:  2
Quantity Discounts
2-16$0.80
17-249$0.60
250+$0.40
3.1mm X 94.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G95) N3.10X094.4

3.1mm X 94.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G95)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
195
$0.51

Add:
Min Qty:  2
Quantity Discounts
2-26$0.51
27-392$0.383
393+$0.255
3.1mm X 99.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G100) N3.10X099.4

3.1mm X 99.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G100)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
75
$0.65

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Min Qty:  2
Quantity Discounts
2-20$0.65
21-307$0.488
308+$0.325
3.1mm X 104.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G105) N3.10X104.4

3.1mm X 104.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G105)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$0.68

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Min Qty:  2
Quantity Discounts
2-19$0.68
20-294$0.51
295+$0.34
3.1mm X 109.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G110) N3.10X109.4

3.1mm X 109.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G110)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$0.68

Add:
Min Qty:  2
Quantity Discounts
2-19$0.68
20-294$0.51
295+$0.34
3.1mm X 114.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G115) N3.10X114.4

3.1mm X 114.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G115)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
52
$0.70

Add:
Min Qty:  2
Quantity Discounts
2-19$0.70
20-285$0.525
286+$0.35
3.1mm X 119.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G120) N3.10X119.4

3.1mm X 119.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G120)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$0.71

Add:
Min Qty:  2
Quantity Discounts
2-18$0.71
19-281$0.533
282+$0.355
3.1mm X 124.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G125) N3.10X124.4

3.1mm X 124.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G125)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$0.73

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Min Qty:  2
Quantity Discounts
2-18$0.73
19-273$0.548
274+$0.365
3.1mm X 129.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G130) N3.10X129.4

3.1mm X 129.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G130)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
13
$0.74

Add:
Min Qty:  2
Quantity Discounts
2-18$0.74
19-270$0.555
271+$0.37
3.1mm X 134.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G135) N3.10X134.4

3.1mm X 134.4mm (NBR) Buna-N 70 Duro Metric O-Ring (JIS G135)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
116
$1.03

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Quantity Discounts
1-12$1.03
13-194$0.773
195+$0.515