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O-Rings

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
12" to 18" ID X 0.157" (4.00mm) C/S Buna-N 70 Vulcanized O-Ring VN70.157-018

12" to 18" ID X 0.157" (4.00mm) C/S Buna-N 70 Vulcanized O-Ring

300mm ID to 450mm ID / 12" to 18" ID Spliced & Vulcanized O-Rings - Typical lead time is 2-5 days for up to 10 O-Rings. More than 10...
0
$7.25



Quantity Discounts
1-9$7.25
10-24$6.525
25+$5.80
18" to 24" ID X 0.157" (4.00mm) C/S Buna-N 70 Vulcanized O-Ring VN70.157-024

18" to 24" ID X 0.157" (4.00mm) C/S Buna-N 70 Vulcanized O-Ring

450mm ID to 600mm ID / 18" to 24" ID Spliced & Vulcanized O-Rings - Typical lead time is 2-5 days for up to 10 O-Rings. More than 10...
0
$7.50



Quantity Discounts
1-9$7.50
10-24$6.75
25+$6.00
24" to 30" ID X 0.157" (4.00mm) C/S Buna-N 70 Vulcanized O-Ring VN70.157-030

24" to 30" ID X 0.157" (4.00mm) C/S Buna-N 70 Vulcanized O-Ring

600mm ID to 762mm / 24" to 30" ID Spliced & Vulcanized O-Rings - Typical lead time is 2-5 days for up to 10 O-Rings. More than 10...
0
$8.25



Quantity Discounts
1-9$8.25
10-24$7.425
25+$6.60
30" to 36" ID X 0.157" (4.00mm) C/S Buna-N 70 Vulcanized O-Ring VN70.157-036

30" to 36" ID X 0.157" (4.00mm) C/S Buna-N 70 Vulcanized O-Ring

762mm ID to 914mm ID / 30" to 36" ID Spliced & Vulcanized O-Rings - Typical lead time is 2-5 days for up to 10 O-Rings. More than 10...
0
$8.50



Quantity Discounts
1-9$8.50
10-24$7.65
25+$6.80
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 100mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X100

4mm x 100mm (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...
57
$1.17

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Quantity Discounts
1-39$1.17
40-256$0.936
257+$0.702
4mm x 102mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X102

4mm x 102mm (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...
61
$1.18

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Quantity Discounts
1-395$1.18
396-2,542$0.944
2,543+$0.708
4mm x 104mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X104

4mm x 104mm (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
$1.19

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Quantity Discounts
1-392$1.19
393-2,521$0.952
2,522+$0.714
4mm x 105mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X105

4mm x 105mm (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
$1.19

Add:

Quantity Discounts
1-392$1.19
393-2,521$0.952
2,522+$0.714
4mm x 107mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X107

4mm x 107mm (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
$1.20

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Quantity Discounts
1-388$1.20
389-2,499$0.96
2,500+$0.72
4mm x 108mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X108

4mm x 108mm (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
$1.21

Add:
Min Qty:  248
Quantity Discounts
248-385$1.21
386-2,479$0.968
2,480+$0.726
4mm x 10mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X010

4mm x 10mm (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...
2,095
$0.10

Add:
Min Qty:  5
Quantity Discounts
5-466$0.10
467-2,999$0.08
3,000+$0.06
4mm x 110mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X110

4mm x 110mm (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
$1.22

Add:
Min Qty:  246
Quantity Discounts
246-382$1.22
383-2,459$0.976
2,460+$0.732
4mm x 112mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X112

4mm x 112mm (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
$1.27

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Quantity Discounts
1-367$1.27
368-2,362$1.016
2,363+$0.762
4mm x 114mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X114

4mm x 114mm (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...
4
$1.32

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Quantity Discounts
1-353$1.32
354-2,272$1.056
2,273+$0.792
4mm x 115mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X115

4mm x 115mm (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
$1.33

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Quantity Discounts
1-350$1.33
351-2,255$1.064
2,256+$0.798
4mm x 116mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X116

4mm x 116mm (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...
24
$1.34

Add:

Quantity Discounts
1-348$1.34
349-2,238$1.072
2,239+$0.804
4mm x 117mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X117

4mm x 117mm (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
$1.36

Add:
Min Qty:  221
Quantity Discounts
221-343$1.36
344-2,205$1.088
2,206+$0.816
4mm x 118mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X118

4mm x 118mm (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...
19
$1.37

Add:

Quantity Discounts
1-340$1.37
341-2,189$1.096
2,190+$0.822
4mm x 119mm (NBR) Buna-N 70 Duro Metric O-Rings (JIS V120) N4.00X119

4mm x 119mm (NBR) Buna-N 70 Duro Metric O-Rings (JIS V120)

Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
3
$1.16

Add:

Quantity Discounts
1-53$1.16
54-359$0.928
360+$0.696
4mm x 11mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X011

4mm x 11mm (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
$0.11

Add:
Min Qty:  5
Quantity Discounts
5-424$0.11
425-2,727$0.088
2,728+$0.066
4mm x 120mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X120

4mm x 120mm (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...
54
$1.40

Add:

Quantity Discounts
1-333$1.40
334-2,142$1.12
2,143+$0.84
4mm x 122mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X122

4mm x 122mm (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
$1.58

Add:
Min Qty:  190
Quantity Discounts
190-295$1.58
296-1,898$1.264
1,899+$0.948
4mm x 123mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X123

4mm x 123mm (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...
9
$1.59

Add:

Quantity Discounts
1-293$1.59
294-1,886$1.272
1,887+$0.954
4mm x 124mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X124

4mm x 124mm (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
$1.61

Add:

Quantity Discounts
1-289$1.61
290-1,863$1.288
1,864+$0.966