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O-Rings

4.5mm 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
4.5mm X 6mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X006

4.5mm X 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...
1,317
$0.26

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Min Qty:  4
Quantity Discounts
4-51$0.26
52-769$0.195
770+$0.13
4.5mm X 8mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X008

4.5mm X 8mm (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...
1,290
$0.26

Add:
Min Qty:  4
Quantity Discounts
4-51$0.26
52-769$0.195
770+$0.13
4.5mm X 9mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X009

4.5mm X 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...
784
$0.26

Add:
Min Qty:  4
Quantity Discounts
4-51$0.26
52-769$0.195
770+$0.13
4.5mm X 10mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X010

4.5mm X 10mm (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
$0.26

Add:
Min Qty:  4
Quantity Discounts
4-51$0.26
52-769$0.195
770+$0.13
4.5mm X 11mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X011

4.5mm X 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...
0
$0.27

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Min Qty:  4
Quantity Discounts
4-49$0.27
50-740$0.203
741+$0.135
4.5mm X 12mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X012

4.5mm X 12mm (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...
659
$0.28

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Min Qty:  4
Quantity Discounts
4-47$0.28
48-714$0.21
715+$0.14
4.5mm X 13mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X013

4.5mm X 13mm (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...
23
$0.29

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Min Qty:  4
Quantity Discounts
4-45$0.29
46-689$0.218
690+$0.145
4.5mm X 15mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X015

4.5mm X 15mm (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...
4,509
$0.31

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Min Qty:  4
Quantity Discounts
4-43$0.31
44-645$0.233
646+$0.155
4.5mm X 15.5mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X015.5

4.5mm X 15.5mm (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...
89
$0.33

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Min Qty:  4
Quantity Discounts
4-40$0.33
41-606$0.248
607+$0.165
4.5mm X 16mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X016

4.5mm X 16mm (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...
316
$0.34

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Min Qty:  3
Quantity Discounts
3-39$0.34
40-588$0.255
589+$0.17
4.5mm X 17mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X017

4.5mm X 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...
926
$0.36

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Min Qty:  3
Quantity Discounts
3-37$0.36
38-555$0.27
556+$0.18
4.5mm X 18mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X018

4.5mm X 18mm (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...
26
$0.38

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Min Qty:  3
Quantity Discounts
3-35$0.38
36-526$0.285
527+$0.19
4.5mm X 19mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X019

4.5mm X 19mm (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...
32
$0.39

Add:
Min Qty:  3
Quantity Discounts
3-34$0.39
35-512$0.293
513+$0.195
4.5mm X 20mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X020

4.5mm X 20mm (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...
101
$0.41

Add:
Min Qty:  3
Quantity Discounts
3-32$0.41
33-487$0.308
488+$0.205
4.5mm X 21mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X021

4.5mm X 21mm (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...
2
$0.43

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Min Qty:  3
Quantity Discounts
3-31$0.43
32-465$0.323
466+$0.215
4.5mm X 21.5mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X021.5

4.5mm X 21.5mm (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...
72
$0.44

Add:
Min Qty:  3
Quantity Discounts
3-30$0.44
31-454$0.33
455+$0.22
4.5mm X 22mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X022

4.5mm X 22mm (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...
3,374
$0.46

Add:
Min Qty:  3
Quantity Discounts
3-28$0.46
29-434$0.345
435+$0.23
4.5mm X 23mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X023

4.5mm X 23mm (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...
559
$0.47

Add:
Min Qty:  3
Quantity Discounts
3-28$0.47
29-425$0.353
426+$0.235
4.5mm X 24mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X024

4.5mm X 24mm (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...
84
$0.49

Add:
Min Qty:  3
Quantity Discounts
3-27$0.49
28-408$0.368
409+$0.245
4.5mm X 25mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X025

4.5mm X 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...
0
$0.50

Add:
Min Qty:  2
Quantity Discounts
2-26$0.50
27-399$0.375
400+$0.25
4.5mm X 26mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X026

4.5mm X 26mm (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...
26
$0.52

Add:
Min Qty:  2
Quantity Discounts
2-25$0.52
26-384$0.39
385+$0.26
4.5mm X 27mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X027

4.5mm X 27mm (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...
78
$0.53

Add:
Min Qty:  2
Quantity Discounts
2-25$0.53
26-377$0.398
378+$0.265
4.5mm X 28mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X028

4.5mm X 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...
20
$0.55

Add:
Min Qty:  2
Quantity Discounts
2-24$0.55
25-363$0.413
364+$0.275
4.5mm X 29.5mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X029.5

4.5mm X 29.5mm (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...
643
$0.56

Add:
Min Qty:  2
Quantity Discounts
2-23$0.56
24-357$0.42
358+$0.28
4.5mm X 30mm (NBR) Buna-N 70 Duro Metric O-Ring N4.50X030

4.5mm X 30mm (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
$0.58

Add:
Min Qty:  2
Quantity Discounts
2-22$0.58
23-344$0.435
345+$0.29