-300 Series - 0.210 - 3/16" 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 79 Products)
Product Image Model Product Name Qty. Price Quantity Discounts
(image for) AS568-309 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50309

AS568-309 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 7/16" ID x 13/16" OD x 3/16" CS The AS568-309 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 0.412 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$0.260
Add:
Min Qty:  710
Quantity Discounts
710-1,785$0.260
1,786-10,199$0.070
10,200-25,599$0.049
25,600+$0.039
(image for) AS568-310 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50310

AS568-310 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 1/2" ID x 7/8" OD x 3/16" CS The AS568-310 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 0.475 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 2569
$0.310
Add:
Min Qty:  60
Quantity Discounts
60-1,505$0.310
1,506-8,619$0.083
8,620-21,699$0.058
21,700+$0.046
(image for) AS568-311 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50311

AS568-311 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 9/16" ID x 15/16" OD x 3/16" CS The AS568-311 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 0.537 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$0.210
Add:
Min Qty:  560
Quantity Discounts
560-1,403$0.210
1,404-8,059$0.089
8,060-20,399$0.062
20,400+$0.049
(image for) AS568-312 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50312

AS568-312 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 5/8" ID x 1" OD x 3/16" CS The AS568-312 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 0.600 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$0.350
Add:
Min Qty:  530
Quantity Discounts
530-1,343$0.350
1,344-7,689$0.093
7,690-19,199$0.065
19,200+$0.052
(image for) AS568-313 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50313

AS568-313 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 11/16" ID x 1-1/16" OD x 3/16" CS The AS568-313 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 0.662 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$0.245
Add:
Min Qty:  480
Quantity Discounts
480-1,213$0.245
1,214-6,939$0.103
6,940-17,499$0.072
17,500+$0.057
(image for) AS568-314 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50314

AS568-314 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 3/4" ID x 1-1/8" OD x 3/16" CS The AS568-314 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 0.725 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$0.410
Add:
Min Qty:  450
Quantity Discounts
450-1,156$0.410
1,157-6,669$0.108
6,670-16,699$0.075
16,700+$0.060
(image for) AS568-315 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50315

AS568-315 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 13/16" ID x 1-3/16" OD x 3/16" CS The AS568-315 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 0.787 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$0.440
Add:
Min Qty:  430
Quantity Discounts
430-1,086$0.440
1,087-6,249$0.115
6,250-15,599$0.080
15,600+$0.064
(image for) AS568-316 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50316

AS568-316 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 7/8" ID x 1-1/4" OD x 3/16" CS The AS568-316 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 0.85 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 9221
$0.450
Add:
Min Qty:  40
Quantity Discounts
40-1,049$0.450
1,050-6,019$0.119
6,020-15,199$0.083
15,200+$0.066
(image for) AS568-317 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50317

AS568-317 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 15/16" ID x 1-5/16" OD x 3/16" CS The AS568-317 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 0.912 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$0.500
Add:
Min Qty:  370
Quantity Discounts
370-925$0.500
926-5,319$0.135
5,320-13,299$0.094
13,300+$0.075
(image for) AS568-318 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50318

AS568-318 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 1" ID x 1-3/8" OD x 3/16" CS The AS568-318 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 0.975 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$0.540
Add:
Min Qty:  340
Quantity Discounts
340-873$0.540
874-4,999$0.143
5,000-12,499$0.100
12,500+$0.080
(image for) AS568-319 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50319

AS568-319 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 1-1/16" ID x 1-7/16" OD x 3/16" CS The AS568-319 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 1.037 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 1862
$0.550
Add:
Min Qty:  50
Quantity Discounts
50-844$0.550
845-4,849$0.148
4,850-12,199$0.103
12,200+$0.082
(image for) AS568-320 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50320

AS568-320 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 1-1/8" ID x 1-1/2" OD x 3/16" CS The AS568-320 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 1.100 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$0.580
Add:
Min Qty:  320
Quantity Discounts
320-816$0.580
817-4,669$0.153
4,670-11,799$0.107
11,800+$0.085
(image for) AS568-321 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50321

AS568-321 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 1-3/16" ID x 1-9/16" OD x 3/16" CS The AS568-321 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 1.162 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 759
$0.620
Add:
Min Qty:  30
Quantity Discounts
30-766$0.620
767-4,389$0.163
4,390-10,999$0.114
11,000+$0.091
(image for) AS568-322 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50322

AS568-322 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 1-1/4" ID x 1-5/8" OD x 3/16" CS The AS568-322 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 1.225 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 138
$0.640
Add:
Min Qty:  30
Quantity Discounts
30-734$0.640
735-4,199$0.170
4,200-10,499$0.119
10,500+$0.095
(image for) AS568-323 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50323

AS568-323 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 1-5/16" ID x 1-11/16" OD x 3/16" CS The AS568-323 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 1.287 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor....
In Stock: 39
$0.660
Add:
Min Qty:  30
Quantity Discounts
30-713$0.660
714-4,099$0.175
4,100-10,299$0.122
10,300+$0.097
(image for) AS568-325 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50325

AS568-325 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 1-1/2" ID x 1-7/8" OD x 3/16" CS The AS568-325 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 1.475 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 1037
$0.760
Add:
Min Qty:  30
Quantity Discounts
30-624$0.760
625-3,569$0.200
3,570-8,899$0.140
8,900+$0.112
(image for) AS568-326 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50326

AS568-326 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 1-5/8" ID x 2" OD x 3/16" CS The AS568-326 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 1.600 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 1695
$0.880
Add:
Min Qty:  210
Quantity Discounts
210-535$0.880
536-3,069$0.233
3,070-7,699$0.163
7,700+$0.130
(image for) AS568-327 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50327

AS568-327 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 1-3/4" ID x 2-1/8" OD x 3/16" CS The AS568-327 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 1.725 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 2151
$0.930
Add:
Min Qty:  200
Quantity Discounts
200-507$0.930
508-2,909$0.246
2,910-7,299$0.172
7,300+$0.137
(image for) AS568-328 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50328

AS568-328 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 1-7/8" ID x 2-1/4" OD x 3/16" CS The AS568-328 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 1.850 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$0.930
Add:
Min Qty:  200
Quantity Discounts
200-507$0.930
508-2,909$0.246
2,910-7,299$0.172
7,300+$0.137
(image for) AS568-329 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50329

AS568-329 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 2" ID x 2-3/8" OD x 3/16" CS The AS568-329 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 1.975 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$1.100
Add:
Min Qty:  170
Quantity Discounts
170-430$1.100
431-2,459$0.290
2,460-6,199$0.203
6,200+$0.162
(image for) AS568-330 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50330

AS568-330 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 2-1/8" ID x 2-1/2" OD x 3/16" CS The AS568-330 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 2.100 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 1507
$1.140
Add:
Min Qty:  170
Quantity Discounts
170-416$1.140
417-2,379$0.300
2,380-5,999$0.210
6,000+$0.168
(image for) AS568-331 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50331

AS568-331 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 2-1/4" ID x 2-5/8" OD x 3/16" CS The AS568-331 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 2.225 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$1.180
Add:
Min Qty:  160
Quantity Discounts
160-398$1.180
399-2,279$0.313
2,280-5,699$0.219
5,700+$0.175
(image for) AS568-332 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50332

AS568-332 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 2-3/8" ID x 2-3/4" OD x 3/16" CS The AS568-332 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 2.350 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$1.210
Add:
Min Qty:  160
Quantity Discounts
160-391$1.210
392-2,239$0.319
2,240-5,599$0.223
5,600+$0.178
(image for) AS568-333 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50333

AS568-333 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 2-1/2" ID x 2-7/8" OD x 3/16" CS The AS568-333 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 2.475 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 0
$1.230
Add:
Min Qty:  150
Quantity Discounts
150-382$1.230
383-2,189$0.326
2,190-5,499$0.228
5,500+$0.182
(image for) AS568-334 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring B50334

AS568-334 B50 (NBR) Buna-N Nitrile 50 Duro O-Ring

Dimensions: 2-5/8" ID x 3" OD x 3/16" CS The AS568-334 is a Buna-N (Nitrile) 50A Durometer O-Ring with an inside diameter of 2.600 inches and a cross-section of 0.210 inches. It is built for low-pressure and vacuum sealing on soft, uneven or lightly loaded surfaces where an extra-soft seal conforms better than standard nitrile. This O-Ring is stocked and shipped same-day by The O-Ring Store LLC, an ISO 9001:2015 certified distributor. Seal...
In Stock: 784
$1.360
Add:
Min Qty:  10
Quantity Discounts
10-350$1.360
351-2,009$0.356
2,010-4,999$0.249
5,000+$0.199
Displaying 1 to 25 (of 79 Products)