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 198 Products)
  Model Item Name Qty. Price Quantity Discounts
4mm x 5mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X005
4mm x 5mm (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...
 2525 $0.150
Add:
Min Qty:  7
Quantity Discounts
7-291$0.150
292-952$0.120
953+$0.105
4mm x 6mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X006
4mm x 6mm (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...
 2162 $0.150
Add:
Min Qty:  7
Quantity Discounts
7-291$0.150
292-952$0.120
953+$0.105
4mm x 7mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X007
4mm x 7mm (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...
 1191 $0.150
Add:
Min Qty:  7
Quantity Discounts
7-291$0.150
292-952$0.120
953+$0.105
4mm x 8mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X008
4mm x 8mm (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...
 49353 $0.170
Add:
Min Qty:  6
Quantity Discounts
6-257$0.170
258-840$0.136
841+$0.119
4mm x 9mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X009
4mm x 9mm (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...
 6938 $0.170
Add:
Min Qty:  6
Quantity Discounts
6-257$0.170
258-840$0.136
841+$0.119
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...
 1506 $0.170
Add:
Min Qty:  6
Quantity Discounts
6-257$0.170
258-840$0.136
841+$0.119
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...
 4697 $0.180
Add:
Min Qty:  6
Quantity Discounts
6-243$0.180
244-793$0.144
794+$0.126
4mm x 12mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X012
4mm x 12mm (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...
 427 $0.180
Add:
Min Qty:  6
Quantity Discounts
6-243$0.180
244-793$0.144
794+$0.126
4mm x 13mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X013
4mm x 13mm (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...
 2403 $0.220
Add:
Min Qty:  5
Quantity Discounts
5-194$0.220
195-624$0.180
625+$0.160
4mm x 14mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X014
4mm x 14mm (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...
 469 $0.220
Add:
Min Qty:  5
Quantity Discounts
5-1,949$0.220
1,950-3,749$0.180
3,750+$0.160
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)
Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
 14966 $1.790
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Quantity Discounts
1-24$1.790
25-79$1.440
80+$1.260
4mm x 15mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X015
4mm x 15mm (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...
 17680 $0.230
Add:
Min Qty:  5
Quantity Discounts
5-184$0.230
185-588$0.190
589+$0.170
4mm x 16mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X016
4mm x 16mm (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...
 1917 $0.240
Add:
Min Qty:  5
Quantity Discounts
5-174$0.240
175-588$0.200
589+$0.170
4mm x 17mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X017
4mm x 17mm (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...
 7729 $0.240
Add:
Min Qty:  5
Quantity Discounts
5-174$0.240
175-588$0.200
589+$0.170
4mm x 18mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X018
4mm x 18mm (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...
 29 $0.250
Add:
Min Qty:  4
Quantity Discounts
4-174$0.250
175-555$0.200
556+$0.180
4mm x 19mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X019
4mm x 19mm (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...
 2979 $0.280
Add:
Min Qty:  4
Quantity Discounts
4-1,526$0.280
1,527-2,999$0.230
3,000+$0.200
4mm x 20mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X020
4mm x 20mm (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...
 74 $0.280
Add:
Min Qty:  4
Quantity Discounts
4-1,526$0.280
1,527-2,999$0.230
3,000+$0.200
4mm x 21mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X021
4mm x 21mm (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...
 4897 $0.300
Add:
Min Qty:  4
Quantity Discounts
4-145$0.300
146-476$0.240
477+$0.210
4mm x 22mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X022
4mm x 22mm (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...
 10789 $0.320
Add:
Min Qty:  4
Quantity Discounts
4-134$0.320
135-434$0.260
435+$0.230
4mm x 23mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X023
4mm x 23mm (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...
 2501 $0.320
Add:
Min Qty:  4
Quantity Discounts
4-134$0.320
135-434$0.260
435+$0.230
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)
Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing...
 3679 $0.230
Add:
Min Qty:  5
Quantity Discounts
5-184$0.230
185-588$0.190
589+$0.170
4mm x 24mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X024
4mm x 24mm (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...
 4848 $0.340
Add:
Min Qty:  3
Quantity Discounts
3-124$0.340
125-416$0.280
417+$0.240
4mm x 25mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X025
4mm x 25mm (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...
 1551 $0.340
Add:
Min Qty:  3
Quantity Discounts
3-1,253$0.340
1,254-2,499$0.280
2,500+$0.240
4mm x 26mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X026
4mm x 26mm (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...
 462 $0.350
Add:
Min Qty:  3
Quantity Discounts
3-124$0.350
125-399$0.280
400+$0.250
4mm x 27mm (NBR) Buna-N 70 Duro Metric O-Rings N4.00X027
4mm x 27mm (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...
 1766 $0.280
Add:
Min Qty:  4
Quantity Discounts
4-152$0.280
153-499$0.230
500+$0.200
Displaying 1 to 25 (of 198 Products)
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