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.

Displaying 1 to 25 (of 194 Products)
Product Image Model Product Name Qty. Price Quantity Discounts
(image for) 4mm x 5mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X005
4mm x 5mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 1241
$0.080
Add:
Min Qty:  38
Quantity Discounts
38-583$0.080
584-23,799$0.060
23,800-73,499$0.042
73,500+$0.034
(image for) 4mm x 6mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X006
4mm x 6mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 6816
$0.080
Add:
Min Qty:  38
Quantity Discounts
38-583$0.080
584-23,799$0.060
23,800-73,499$0.042
73,500+$0.034
(image for) 4mm x 7mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X007
4mm x 7mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 15
$0.080
Add:
Min Qty:  38
Quantity Discounts
38-583$0.080
584-23,799$0.060
23,800-73,499$0.042
73,500+$0.034
(image for) 4mm x 8mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X008
4mm x 8mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 48768
$0.080
Add:
Min Qty:  38
Quantity Discounts
38-583$0.080
584-23,799$0.060
23,800-73,499$0.042
73,500+$0.034
(image for) 4mm x 9mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X009
4mm x 9mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 4626
$0.080
Add:
Min Qty:  38
Quantity Discounts
38-583$0.080
584-23,799$0.060
23,800-73,499$0.042
73,500+$0.034
(image for) 4mm x 10mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X010
4mm x 10mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 1076
$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) 4mm x 11mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X011
4mm x 11mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 4134
$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) 4mm x 12mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X012
4mm x 12mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 7903
$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) 4mm x 13mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X013
4mm x 13mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 1552
$0.100
Add:
Min Qty:  30
Quantity Discounts
30-466$0.100
467-18,899$0.075
18,900-58,099$0.053
58,100+$0.043
(image for) 4mm x 14mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X014
4mm x 14mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 4918
$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) 4mm x 14.5mm (NBR) Buna-N 70 Duro Metric O-Rings (JIS V15) N4.00X014.5
4mm x 14.5mm (NBR) Buna-N 70 Duro Metric O-Rings (JIS V15)
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 977
$0.120
Add:
Min Qty:  1667
Quantity Discounts
1667-3,888$0.120
3,889$0.090
15,900-48,999$0.063
49,000+$0.051
(image for) 4mm x 15mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X015
4mm x 15mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 14538
$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) 4mm x 16mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X016
4mm x 16mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 26374
$0.130
Add:
Min Qty:  24
Quantity Discounts
24-357$0.130
358-14,499$0.098
14,500-44,599$0.069
44,600+$0.056
(image for) 4mm x 17mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X017
4mm x 17mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 5080
$0.130
Add:
Min Qty:  24
Quantity Discounts
24-357$0.130
358-14,499$0.098
14,500-44,599$0.069
44,600+$0.056
(image for) 4mm x 18mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X018
4mm x 18mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 1184
$0.130
Add:
Min Qty:  24
Quantity Discounts
24-357$0.130
358-14,499$0.098
14,500-44,599$0.069
44,600+$0.056
(image for) 4mm x 19mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X019
4mm x 19mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 47
$0.140
Add:
Min Qty:  22
Quantity Discounts
22-333$0.140
334-13,499$0.105
13,500-41,699$0.074
41,700+$0.060
(image for) 4mm x 20mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X020
4mm x 20mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 337
$0.140
Add:
Min Qty:  22
Quantity Discounts
22-333$0.140
334-13,499$0.105
13,500-41,699$0.074
41,700+$0.060
(image for) 4mm x 21mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X021
4mm x 21mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 4579
$0.150
Add:
Min Qty:  20
Quantity Discounts
20-309$0.150
310-12,499$0.113
12,500-39,099$0.080
39,100+$0.064
(image for) 4mm x 22mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X022
4mm x 22mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 9093
$0.170
Add:
Min Qty:  18
Quantity Discounts
18-273$0.170
274-11,099$0.128
11,100-34,699$0.090
34,700+$0.072
(image for) 4mm x 23mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X023
4mm x 23mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 11058
$0.170
Add:
Min Qty:  18
Quantity Discounts
18-273$0.170
274-11,099$0.128
11,100-34,699$0.090
34,700+$0.072
(image for) 4mm x 23.5mm (NBR) Buna-N 70 Duro Metric O-Rings (JIS V24) N4.00X023.5
4mm x 23.5mm (NBR) Buna-N 70 Duro Metric O-Rings (JIS V24)
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 2973
$0.170
Add:
Min Qty:  18
Quantity Discounts
18-273$0.170
274-11,099$0.128
11,100-34,699$0.090
34,700+$0.072
(image for) 4mm x 24mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X024
4mm x 24mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 4396
$0.170
Add:
Min Qty:  18
Quantity Discounts
18-273$0.170
274-11,099$0.128
11,100-34,699$0.090
34,700+$0.072
(image for) 4mm x 25mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X025
4mm x 25mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 661
$0.180
Add:
Min Qty:  17
Quantity Discounts
17-259$0.180
260-10,499$0.135
10,500-32,899$0.095
32,900+$0.076
(image for) 4mm x 26mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X026
4mm x 26mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 64
$0.180
Add:
Min Qty:  17
Quantity Discounts
17-259$0.180
260-10,499$0.135
10,500-32,899$0.095
32,900+$0.076
(image for) 4mm x 27mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X027
4mm x 27mm (NBR) Buna-N 70 Duro Metric O-Rings
Buna-N Nitrile (NBR) Metric O-Rings – 70 Durometer The O-Ring Store LLC provides high-quality Buna-N Nitrile (NBR) Metric O-Rings , engineered for superior sealing performance across industrial, automotive, and commercial applications. Our 70-durometer Buna-N O-Rings offer excellent resistance to...
 In Stock: 1151
$0.190
Add:
Min Qty:  16
Quantity Discounts
16-244$0.190
245-9,899$0.143
9,900$0.101
30,900+$0.081
Displaying 1 to 25 (of 194 Products)
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1847 Wilma Dr, Clarkston WA 99403
Phone 208-413-6377 - Fax 208-413-6719