Buna-N Nitrile (NBR) 70 Duro Round O-Ring Cord

Round O-Ring cords are the most common type of O-Ring. The round profile is very versatile and can provide an effective seal for a wide range of pressures, temperatures, and fluid types. In a properly designed sealing groove, a round O-Ring can deform under pressure to fill the gap and prevent the passage of fluid.

One of the key advantages of O-Ring cord is that it can be cut to the exact length required and joined to form an O-Ring of a specific size. This is particularly useful for large or non-standard sizes, where a pre-made O-Ring may not be readily available. However, a joint in an O-Ring can be a potential weak point, so this approach is typically used for less critical applications or when the operating conditions are not overly demanding.

As with any type of seal, the effectiveness of an O-Ring is highly dependent on the specific application conditions, including pressure, temperature, the type of fluid being sealed, and the mechanical design of the sealing groove. The decision to use a round Buna O-Ring cord or any other type of O-Ring should be based on a thorough consideration of these factors.

Displaying 1 to 25 (of 51 Products)
Product Image Model Product Name Qty. Price Quantity Discounts
(image for) Black Rubber Toughened O-ring Glue 2gm Vial 04-143B-TF
Black Rubber Toughened O-ring Glue 2gm Vial
Turbo Fuse Black Rubber Toughened Cyanoacrylate Adhesive Viscosity 300 Palm Lab's Cyanoacrylate is a one component rapid bonding adhesive. TURBO...
In Stock: 110
$3.000
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1$3.000
2-24$2.750
25+$2.000
(image for) .040" (1.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.040
.040" (1.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 5612
$0.730
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Min Qty:  7
Quantity Discounts
7-99$0.730
100-999$0.395
1,000+$0.318
(image for) .063" (1.60mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.063
.063" (1.60mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 28840
$0.480
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Min Qty:  7
Quantity Discounts
7-99$0.480
100-999$0.255
1,000+$0.205
(image for) .063'' (1.60mm) Buna-N 70 O-Ring Cord Stock, 25' Piece, Black N70.063/25
.063'' (1.60mm) Buna-N 70 O-Ring Cord Stock, 25' Piece, Black
Round Nitrile, Buna-N (NBR): Round Buna-N Nitrile O-Ring Cord is an essential component for many industries, providing a reliable seal for hydraulic...
In Stock: 5
$12.000
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1$12.000
2-9$8.190
10+$6.825
(image for) .070" (1.78mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.070
.070" (1.78mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 5757
$0.340
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Min Qty:  7
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7-99$0.340
100-999$0.255
1,000+$0.205
(image for) .079" (2.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.079
.079" (2.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 10143
$0.330
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Min Qty:  7
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7-99$0.330
100-999$0.275
1,000+$0.221
(image for) .093" (2.40mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.093
.093" (2.40mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 3583
$0.370
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Min Qty:  7
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7-99$0.370
100-999$0.283
1,000+$0.238
(image for) .098" (2.50mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.098
.098" (2.50mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 413
$0.360
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Min Qty:  7
Quantity Discounts
7-99$0.360
100-999$0.283
1,000+$0.228
(image for) .098'' (2.50mm) Buna-N 70 O-Ring Cord Stock, 25' Piece, Black N70.098/25
.098'' (2.50mm) Buna-N 70 O-Ring Cord Stock, 25' Piece, Black
Round Nitrile, Buna-N (NBR): Round Buna-N Nitrile O-Ring Cord is an essential component for many industries, providing a reliable seal for hydraulic...
In Stock: 1
$9.000
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Quantity Discounts
1$9.000
2-9$9.090
10+$7.575
(image for) .103" (2.62mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.103
.103" (2.62mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 3750
$0.400
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Min Qty:  7
Quantity Discounts
7-99$0.400
100-499$0.320
500+$0.270
(image for) .103'' (2.62mm) Buna-N 70 O-Ring Cord Stock, 7' Piece, Black N70.103/07
.103'' (2.62mm) Buna-N 70 O-Ring Cord Stock, 7' Piece, Black
Round Nitrile, Buna-N (NBR): Round Buna-N Nitrile O-Ring Cord is an essential component for many industries, providing a reliable seal for hydraulic...
In Stock: 4
$2.590
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Quantity Discounts
1$2.590
2-9$2.798
10+$2.331
(image for) .118" (3.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.118
.118" (3.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 2963
$0.450
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Min Qty:  7
Quantity Discounts
7-99$0.450
100-999$0.314
1,000+$0.252
(image for) .118'' (3.00mm) Buna-N 70 O-Ring Cord Stock, 7' Piece, Black N70.118/07
.118'' (3.00mm) Buna-N 70 O-Ring Cord Stock, 7' Piece, Black
Round Nitrile, Buna-N (NBR): Round Buna-N Nitrile O-Ring Cord is an essential component for many industries, providing a reliable seal for hydraulic...
In Stock: 1
$3.150
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Quantity Discounts
1$3.150
2-9$2.823
10+$2.352
(image for) .125" (3.18mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.125
.125" (3.18mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 1713
$0.900
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Min Qty:  7
Quantity Discounts
7-99$0.900
100-999$0.485
1,000+$0.390
(image for) .139" (3.53mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.139
.139" (3.53mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 2138
$0.420
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Min Qty:  7
Quantity Discounts
7-99$0.420
100-999$0.418
1,000+$0.336
(image for) .139'' (3.53mm) Buna-N 70 O-Ring Cord Stock, 5' Piece, Black N70.139/05
.139'' (3.53mm) Buna-N 70 O-Ring Cord Stock, 5' Piece, Black
Round Nitrile, Buna-N (NBR): Round Buna-N Nitrile O-Ring Cord is an essential component for many industries, providing a reliable seal for hydraulic...
In Stock: 43
$2.100
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Quantity Discounts
1$2.100
2-9$2.300
10+$2.000
(image for) .157" (4.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.157
.157" (4.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 1209
$0.520
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Min Qty:  7
Quantity Discounts
7-99$0.520
100-999$0.418
1,000+$0.336
(image for) .177" (4.50mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.177
.177" (4.50mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 515
$0.560
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Min Qty:  7
Quantity Discounts
7-99$0.560
100-999$0.616
1,000+$0.495
(image for) .188" (4.78mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.188
.188" (4.78mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 1138
$0.820
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Min Qty:  7
Quantity Discounts
7-99$0.820
100-999$0.443
1,000+$0.356
(image for) .188'' (4.78mm) Buna-N 70 O-Ring Cord Stock, 25' Piece, Black N70.188/25
.188'' (4.78mm) Buna-N 70 O-Ring Cord Stock, 25' Piece, Black
Round Nitrile, Buna-N (NBR): Round Buna-N Nitrile O-Ring Cord is an essential component for many industries, providing a reliable seal for hydraulic...
In Stock: 6
$20.500
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Quantity Discounts
1$20.500
2-9$14.220
10+$11.850
(image for) .197" (5.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.197
.197" (5.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 0
$0.850
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Min Qty:  7
Quantity Discounts
7-99$0.850
100-999$0.591
1,000+$0.475
(image for) .210" (5.33mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.210
.210" (5.33mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 548
$0.570
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Min Qty:  7
Quantity Discounts
7-99$0.570
100-999$0.602
1,000+$0.484
(image for) .224" (5.70mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.224
.224" (5.70mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 747
$0.890
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Min Qty:  7
Quantity Discounts
7-99$0.890
100-999$0.574
1,000+$0.462
(image for) .224" (5.70MM) Buna-N 70 O-Ring Cord Stock, 500' Spool, Black N70.224/500
.224" (5.70MM) Buna-N 70 O-Ring Cord Stock, 500' Spool, Black
Round Nitrile, Buna-N (NBR): Round Buna-N Nitrile O-Ring Cord is an essential component for many industries, providing a reliable seal for hydraulic...
In Stock: 2
$445.000
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Quantity Discounts
1$445.000
2-9$287.000
10+$256.250
(image for) .236" (6.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black N70.236
.236" (6.00mm) Buna-N 70 O-Ring Cord Stock, Bulk, Black
Round Nitrile, Buna-N (NBR) O-Ring Cord - Available by the Foot We spool 100' runs in house. Longer runs will be depending on factory production....
In Stock: 1669
$1.100
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Min Qty:  7
Quantity Discounts
7-99$1.100
100-999$0.670
1,000+$0.538
Displaying 1 to 25 (of 51 Products)
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Phone 208-413-6377 - Fax 208-413-6719