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4.0mm 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 Qty. Price Quantity Discounts
4mm x 173mm (NBR) Buna-N 70 Duro Metric O-Rings (JIS V175) N4.00X173

4mm x 173mm (NBR) Buna-N 70 Duro Metric O-Rings (JIS V175)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$1.91

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Min Qty:  262
Quantity Discounts
262-32$1.91
33-218$1.528
219+$1.146
4mm x 174mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X174

4mm x 174mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$3.26

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Min Qty:  93
Quantity Discounts
93-143$3.26
144-920$2.608
921+$1.956
4mm x 177mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X177

4mm x 177mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$3.29

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Min Qty:  92
Quantity Discounts
92-141$3.29
142-911$2.632
912+$1.974
4mm x 180mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X180

4mm x 180mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$3.34

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Quantity Discounts
1-139$3.34
140-898$2.672
899+$2.004
4mm x 196mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X196

4mm x 196mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
6
$3.54

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Quantity Discounts
1-131$3.54
132-847$2.832
848+$2.124
4mm x 200mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X200

4mm x 200mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$3.54

Add:
Min Qty:  85
Quantity Discounts
85-131$3.54
132-847$2.832
848+$2.124
4mm x 204mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X204

4mm x 204mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
13
$3.60

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Quantity Discounts
1-129$3.60
130-833$2.88
834+$2.16
4mm CS X 204mm ID (NBR) Buna-N 70 Duro Metric O-Ring N4.00X205

4mm CS X 204mm ID (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...
0
$2.24

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Min Qty:  134
Quantity Discounts
134-297$2.24
298-1,339$1.792
1,340+$1.344
4mm x 207mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X207

4mm x 207mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
398
$3.60

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Quantity Discounts
1-129$3.60
130-833$2.88
834+$2.16
4mm x 208mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X208

4mm x 208mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
1
$3.60

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Quantity Discounts
1-129$3.60
130-833$2.88
834+$2.16
4mm x 210mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X210

4mm x 210mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
289
$3.60

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Quantity Discounts
1-129$3.60
130-833$2.88
834+$2.16
4mm x 214mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X214

4mm x 214mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$3.60

Add:
Min Qty:  84
Quantity Discounts
84-129$3.60
130-833$2.88
834+$2.16
4mm x 216mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X216

4mm x 216mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
7
$3.71

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Quantity Discounts
1-125$3.71
126-808$2.968
809+$2.226
4mm x 220mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X220

4mm x 220mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
2
$3.67

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Quantity Discounts
1-127$3.67
128-817$2.936
818+$2.202
4mm x 225mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X225

4mm x 225mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$3.72

Add:
Min Qty:  81
Quantity Discounts
81-125$3.72
126-806$2.976
807+$2.232
4mm x 232mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X232

4mm x 232mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$3.87

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Quantity Discounts
1-120$3.87
121-775$3.096
776+$2.322
4mm x 240mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X240

4mm x 240mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$4.04

Add:
Min Qty:  75
Quantity Discounts
75-115$4.04
116-742$3.232
743+$2.424
4mm x 242mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X242

4mm x 242mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$4.28

Add:
Min Qty:  71
Quantity Discounts
71-109$4.28
110-700$3.424
701+$2.568
4mm x 245mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X245

4mm x 245mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$4.52

Add:
Min Qty:  67
Quantity Discounts
67-103$4.52
104-663$3.616
664+$2.712
4mm x 247mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X247

4mm x 247mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
14
$4.58

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Quantity Discounts
1-101$4.58
102-655$3.664
656+$2.748
4mm x 250mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X250

4mm x 250mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
48
$4.64

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Quantity Discounts
1-100$4.64
101-646$3.712
647+$2.784
4mm x 252mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X252

4mm x 252mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
-1
$4.95

Add:
Min Qty:  61
Quantity Discounts
61-94$4.95
95-606$3.96
607+$2.97
4mm x 254mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X254

4mm x 254mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$5.26

Add:
Min Qty:  58
Quantity Discounts
58-88$5.26
89-570$4.208
571+$3.156
4mm x 255mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X255

4mm x 255mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
3
$5.57

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Quantity Discounts
1-83$5.57
84-538$4.456
539+$3.342
4mm x 260mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X260

4mm x 260mm (NBR) Buna-N 70 Duro Metric O-Rings

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
0
$5.88

Add:
Min Qty:  52
Quantity Discounts
52-79$5.88
80-510$4.704
511+$3.528