-400 Series - 0.275 -1/4" CS

50 Durometer, Commercial Grade Soft Buna-N O-Rings

Designed for applications requiring soft O-Ring sealing material. Primarily used as a low pressure static seal or gasket. Buna-N compound materials are "standard” for most O-Ring service. While they are not as strong as other Buna-N O-Rings, Soft Buna-N O-Rings require less force to make an effective seal and conform better to uneven surfaces. They are suitable for a broad range of fluids including oils, water, and mild chemicals.

Displaying 1 to 25 (of 41 Products)
  Model Item Name Qty. Price Quantity Discounts
AS568-425 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50425
AS568-425 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
4-1/2" ID X 5" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
255 $6.640
Add:
Quantity Discounts
1-7$6.640
8-37$3.320
38+$2.650
AS568-426 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50426
AS568-426 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
4-5/8" ID X 5-1/8" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0 $6.700
Add:
Min Qty:  129
Quantity Discounts
129-179$6.700
180-373$3.350
374+$2.680
AS568-427 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50427
AS568-427 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
4-3/4" ID X 5-1/4" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0 $7.040
Add:
Min Qty:  56
Quantity Discounts
56-170$7.040
171-355$3.520
356+$2.810
AS568-428 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50428
AS568-428 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
4-7/8" ID X 5-3/8" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0 $7.180
Add:
Min Qty:  152
Quantity Discounts
152-167$7.180
168-348$3.590
349+$2.870
AS568-429 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50429
AS568-429 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
5" ID X 5-1/2" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0 $7.260
Add:
Min Qty:  58
Quantity Discounts
58-165$7.260
166-344$3.630
345+$2.900
AS568-430 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50430
AS568-430 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
5-1/8" ID X 5-5/8" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0 $7.360
Add:
Min Qty:  63
Quantity Discounts
63-163$7.360
164-340$3.680
341+$2.940
AS568-431 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50431
AS568-431 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
5-1/4" ID X 5-3/4" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0 $7.440
Add:
Min Qty:  1667
Quantity Discounts
1667-161$7.440
162-336$3.720
337+$2.970
AS568-432 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50432
AS568-432 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
5-3/8" ID X 5-7/8" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
237 $7.500
Add:
Quantity Discounts
1-6$7.500
7-33$3.750
34+$3.000
AS568-433 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50433
AS568-433 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
5-1/2" ID X 6" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
359 $7.580
Add:
Quantity Discounts
1-6$7.580
7-33$3.790
34+$3.030
AS568-434 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50434
AS568-434 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
5-5/8" ID X 6-1/8" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0 $7.680
Add:
Min Qty:  116
Quantity Discounts
116-156$7.680
157-325$3.840
326+$3.070
AS568-435 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50435
AS568-435 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
5-3/4" ID X 6-1/4" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0 $7.840
Add:
Min Qty:  63
Quantity Discounts
63-153$7.840
154-319$3.920
320+$3.130
AS568-436 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50436
AS568-436 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
5-7/8" ID X 6-3/8" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0 $8.000
Add:
Min Qty:  142
Quantity Discounts
142-149$8.000
150-312$4.000
313+$3.200
AS568-437 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50437
AS568-437 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
6" ID X 6-1/2" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
425 $8.160
Add:
Quantity Discounts
1-6$8.160
7-30$4.080
31+$3.260
AS568-438 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50438
AS568-438 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
6-1/4"ID X 6-3/4"OD X 1/4"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0 $8.340
Add:
Min Qty:  144
Quantity Discounts
144$8.340
144-300$4.170
301+$3.330
AS568-439 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50439
AS568-439 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
6-1/2" ID X 7" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
249 $8.400
Add:
Quantity Discounts
1-249$8.400
250-999$4.200
1,000+$3.360
AS568-440 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50440
AS568-440 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
6-3/4" ID X 7-1/4" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
0 $11.480
Add:
Min Qty:  204
Quantity Discounts
204-104$11.480
105-217$5.740
218+$4.590
AS568-441 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50441
AS568-441 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
7" ID X 7-1/2" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
0 $11.560
Add:
Min Qty:  39
Quantity Discounts
39-103$11.560
104-216$5.780
217+$4.620
AS568-442 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50442
AS568-442 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
7-1/4" ID X 7-3/4" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
283 $11.700
Add:
Quantity Discounts
1-4$11.700
5-21$5.850
22+$4.680
AS568-443 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50443
AS568-443 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
7-1/2" ID X 8" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known...
648 $12.040
Add:
Min Qty:  49
Quantity Discounts
49-4$12.040
5-20$6.020
21+$4.810
AS568-444 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50444
AS568-444 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
7-3/4" ID X 8-1/4" OD X 1/4" CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also...
318 $12.360
Add:
Quantity Discounts
1-4$12.360
5-20$6.180
21+$4.940
AS568-445 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50445
AS568-445 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
8"ID X 8-1/2"OD X 1/4"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0 $12.380
Add:
Min Qty:  521
Quantity Discounts
521-96$12.380
97-202$6.190
203+$4.950
AS568-446 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50446
AS568-446 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
8-1/2"ID X 9"OD X 1/4"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0 $12.600
Add:
Min Qty:  167
Quantity Discounts
167-95$12.600
96-198$6.300
199+$5.040
AS568-447 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50447
AS568-447 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
9"ID X 9-1/2"OD X 1/4"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0 $13.000
Add:
Min Qty:  556
Quantity Discounts
556-92$13.000
93-192$6.500
193+$5.200
AS568-448 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50448
AS568-448 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
9-1/2"ID X 10"OD X 1/4"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0 $13.660
Add:
Min Qty:  334
Quantity Discounts
334-87$13.660
88-183$6.830
184+$5.460
AS568-449 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50449
AS568-449 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring
10"ID X 10-1/2"OD X 1/4"CS Buna-N O-Rings 50 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as...
0 $14.080
Add:
Min Qty:  171
Quantity Discounts
171-85$14.080
86-177$7.040
178+$5.630
Displaying 1 to 25 (of 41 Products)
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1847 Wilma Dr, Clarkston WA 99403
Phone 208-413-6377 - Fax 208-413-6719