The store will not work correctly when cookies are disabled.
JavaScript seems to be disabled in your browser.
For the best experience on our site, be sure to turn on Javascript in your browser.
70 Durometer Buna-N O-Ring, Inch OD, 4-5/8 Inch ID, 0.21 Inch Width
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
568-350
Alternate Part Numbers
Alternate Part Number
568-350 ,
Alternate Part Number
C1CF92 ,
Alternate Part Number
MI-08740538 ,
Alternate Part Number
MINO-00407X21596
i’ve got a groove cut for a -350 o-ring. is this the right dash size, and what are the actual measurements on it?
Question by: Shawn A on Aug 16, 2025, 8:24 AM
For dash size matching, this one is a -350. Dimension-wise, it measures 4.6 inches actual ID, 5.02 inches actual OD, and 0.21 inch actual width.
Answer by: Customer Support on Aug 17, 2025, 6:22 PM
Got a hydraulic cylinder that takes a -350 dash size o-ring. This the right one, or do I need to track down something different?
Question by: Tammy G on Jun 30, 2025, 8:57 PM
dash size -350 is correct for this one. The actual inner diameter runs 4.6 inches, outer diameter is 5.02 inches, and the width comes in at 0.21 inches. If your groove is sized for a -350, this will drop right in without any fuss.
Answer by: Customer Support on Jul 2, 2025, 6:57 AM
Similar Products
Model Number
Dash Size
Nominal I.D. (in)
Nominal O.D.
Nominal Width
Actual I.D.
Actual O.D.
Actual Width
Package Qty.
Price
Buy Now
A-008
-008
3/16
5/16
1/16
0.176
0.316
0.07 in
50
A-011
-011
5/16
7/16
1/16
0.301
0.441
0.07 in
50
A-013
-013
7/16
9/16
1/16
0.426
0.566
0.07 in
50
A-017
-017
11/16
13/16
1/16
0.676
0.816
0.07 in
50
A-020
-020
7/8
1
1/16
0.864
1.004
0.07 in
50
A-022
-022
1
1-1/8
1/16
0.989
1.129
0.07 in
50
A-024
-024
1-1/8
1-1/4
1/16
1.114
1.254
0.07 in
50
A-029
-029
1-1/2
1-5/8
1/16
1.489
1.629
0.07 in
20
A-037
-037
2-1/2
2-5/8
1/16
2.489
2.629
0.07 in
20
A-038
-038
2-5/8
2-3/4
1/16
2.614
2.754
0.07 in
10
A-043
-043
3-1/2
3-5/8
1/16
3.489
3.629
0.07 in
10
A-045
-045
4
4-1/8
1/16
3.989
4.129
0.07 in
10
A-112
-112
1/2
11/16
3/32
0.487
0.693
0.103 in
50
A-118
-118
7/8
1-1/16
3/32
0.862
1.068
0.103 in
50
A-121
-121
1-1/16
1-1/4
3/32
1.049
1.255
0.103 in
50
A-131-ORING
-131
1-11/16
1-7/8
3/32
1.674
1.88
0.103 in
20
A-136
-136
2
2-3/16
3/32
1.987
2.193
0.103 in
20
A-140
-140
2-1/4
2-7/16
3/32
2.237
2.443
0.103 in
20
A-146
-146
2-5/8
2-13/16
3/32
2.612
2.818
0.103 in
20
A-152
-152
3-1/4
3-7/16
3/32
3.237
3.443
0.103 in
10
A-159
-159
5
5-3/16
3/32
4.987
5.193
0.103 in
4
A-169
-169
7-1/2
7-11/16
3/32
7.487
7.693
0.103 in
2
A-214
-214
1
1-1/4
1/8
0.984
1.262
0.139 in
20
A-218
-218
1-1/4
1-1/2
1/8
1.234
1.512
0.139 in
20
A-221
-221
1-7/16
1-11/16
1/8
1.421
1.699
0.139 in
20
A-231
-231
2-5/8
2-7/8
1/8
2.609
2.887
0.139 in
10
A-232
-232
2-3/4
3
1/8
2.734
3.012
0.139 in
10
A-233
-233
2-7/8
3-1/8
1/8
2.859
3.137
0.139 in
10
A-234
-234
3
3-1/4
1/8
2.984
3.262
0.139 in
10
A-236
-236
3-1/4
3-1/2
1/8
3.234
3.512
0.139 in
10
A-238-ORING
-238
3-1/2
3-3/4
1/8
3.484
3.762
0.139 in
10
A-242-ORING
-242
4
4-1/4
1/8
3.984
4.262
0.139 in
10
A-244
-244
4-1/4
4-1/2
1/8
4.234
4.512
0.139 in
10
A-248
-248
4-3/4
5
1/8
4.734
5.012
0.139 in
4
A-251
-251
5-1/8
5-3/8
1/8
5.109
5.387
0.139 in
4
A-252
-252
5-1/4
5-1/2
1/8
5.234
5.512
0.139 in
4
A-256
-256
5-3/4
6
1/8
5.734
6.012
0.139 in
4
A-329
-329
2
2-3/8
3/16
1.975
2.395
0.21 in
20
A-334
-334
2-5/8
3
3/16
2.6
3.02
0.21 in
20
A-338
-338
3-1/8
3-1/2
3/16
3.1
3.52
0.21 in
10
A-342
-342
3-5/8
4
3/16
3.6
4.02
0.21 in
4
A-346
-346
4-1/8
4-1/2
3/16
4.1
4.52
0.21 in
4
568-450
-450
10-1/2
11
1/4
10.475
11.025
0.275 in
1
A-003
-003
1/16
3/16
1/16
0.056
0.176
0.06 in
50
A-005
-005
3/32
7/32
1/16
0.101
0.241
0.07 in
50
A-006
-006
1/8
1/4
1/16
0.114
0.254
0.07 in
50
A-007
-007
5/32
9/32
1/16
0.145
0.285
0.07 in
50
A-009
-009
7/32
11/32
1/16
0.208
0.348
0.07 in
50
A-010
-010
1/4
3/8
1/16
0.239
0.379
0.07 in
50
A-012
-012
3/8
1/2
1/16
0.364
0.504
0.07 in
50
A-014
-014
1/2
5/8
1/16
0.489
0.629
0.07 in
50
A-015
-015
9/16
11/16
1/16
0.551
0.691
0.07 in
50
A-016
-016
5/8
3/4
1/16
0.614
0.754
0.07 in
50
A-019
-019
13/16
15/16
1/16
0.801
0.941
0.07 in
50
A-021
-021
15/16
1-1/16
1/16
0.926
1.066
0.07 in
50
A-023
-023
1-1/16
1-3/16
1/16
1.051
1.191
0.07 in
50
A-025
-025
1-3/16
1-5/16
1/16
1.176
1.316
0.07 in
50
A-026
-026
1-1/4
1-3/8
1/16
1.239
1.379
0.07 in
50
A-027
-027
1-5/16
1-7/16
1/16
1.301
1.441
0.07 in
50
A-028
-028
1-3/8
1-1/2
1/16
1.364
1.504
0.07 in
20
A-030
-030
1-5/8
1-3/4
1/16
1.614
1.754
0.07 in
20
A-031
-031
1-3/4
1-7/8
1/16
1.739
1.879
0.07 in
20
A-032
-032
1-7/8
2
1/16
1.864
2.004
0.07 in
20
A-033
-033
2
2-1/8
1/16
1.989
2.129
0.07 in
20
A-034
-034
2-1/8
2-1/4
1/16
2.114
2.254
0.07 in
20
A-035
-035
2-1/4
2-3/8
1/16
2.239
2.379
0.07 in
20
A-036
-036
2-3/8
2-1/2
1/16
2.364
2.504
0.07 in
20
A-039
-039
2-3/4
2-7/8
1/16
2.739
2.879
0.07 in
10
A-040
-040
2-7/8
3
1/16
2.864
3.004
0.07 in
10
A-041
-041
3
3-1/8
1/16
2.989
3.129
0.07 in
10
A-042
-042
3-1/4
3-3/8
1/16
3.239
3.379
0.07 in
10
A-044
-044
3-3/4
3-7/8
1/16
3.739
3.879
0.07 in
10
A-048
-048
4-3/4
4-7/8
1/16
4.739
4.879
0.07 in
4
A-049
-049
5
5-1/8
1/16
4.989
5.129
0.07 in
4
A-106
-106
3/16
3/8
3/32
0.174
0.38
0.103 in
50
A-107
-107
7/32
13/32
3/32
0.206
0.412
0.103 in
50
A-108
-108
1/4
7/16
3/32
0.237
0.443
0.103 in
50
A-109
-109
5/16
1/2
3/32
0.299
0.505
0.103 in
50
A-110-ORING
-110
3/8
9/16
3/32
0.362
0.568
0.103 in
50
A-111
-111
7/16
5/8
3/32
0.424
0.63
0.103 in
50
A-114
-114
5/8
13/16
3/32
0.612
0.818
0.103 in
50
A-115
-115
11/16
7/8
3/32
0.674
0.88
0.103 in
50
A-116
-116
3/4
15/16
3/32
0.737
0.943
0.103 in
50
A-117
-117
13/16
1
3/32
0.799
1.005
0.103 in
50
A-119
-119
15/16
1-1/8
3/32
0.924
1.13
0.103 in
50
A-120
-120
1
1-3/16
3/32
0.987
1.193
0.103 in
50
A-122
-122
1-1/8
1-5/16
3/32
1.112
1.318
0.103 in
20
A-123
-123
1-3/16
1-3/8
3/32
1.174
1.38
0.103 in
20
A-124
-124
1-1/4
1-7/16
3/32
1.237
1.443
0.103 in
20
A-125
-125
1-5/16
1-1/2
3/32
1.299
1.505
0.103 in
20
A-126
-126
1-3/8
1-9/16
3/32
1.362
1.568
0.103 in
20
A-127
-127
1-7/16
1-5/8
3/32
1.424
1.63
0.103 in
20
A-128
-128
1-1/2
1-11/16
3/32
1.487
1.693
0.103 in
20
A-129-ORING
-129
1-9/16
1-3/4
3/32
1.549
1.755
0.103 in
20
A-130
-130
1-5/8
1-13/16
3/32
1.612
1.818
0.103 in
20
A-132-ORING
-132
1-3/4
1-15/16
3/32
1.737
1.943
0.103 in
20
A-133
-133
1-13/16
2
3/32
1.799
2.005
0.103 in
20
A-134
-134
1-7/8
2-1/16
3/32
1.862
2.068
0.103 in
20
A-135
-135
1-15/16
2-1/8
3/32
1.925
2.131
0.103 in
20
A-138
-138
2-1/8
2-5/16
3/32
2.112
2.318
0.103 in
20
A-139
-139
2-3/16
2-3/8
3/32
2.175
2.381
0.103 in
20
A-141-ORING
-141
2-5/16
2-1/2
3/32
2.3
2.506
0.103 in
20
A-142
-142
2-3/8
2-9/16
3/32
2.362
2.568
0.103 in
20
A-143
-143
2-7/16
2-5/8
3/32
2.425
2.631
0.103 in
20
A-144
-144
2-1/2
2-11/16
3/32
2.487
2.693
0.103 in
20
A-145
-145
2-9/16
2-3/4
3/32
2.55
2.756
0.103 in
20
A-147
-147
2-11/16
2-7/8
3/32
2.675
2.881
0.103 in
20
A-148
-148
2-3/4
2-15/16
3/32
2.737
2.943
0.103 in
10
A-149
-149
2-13/16
3
3/32
2.8
3.006
0.103 in
10
A-150
-150
2-7/8
3-1/16
3/32
2.862
3.068
0.103 in
10
A-151
-151
3
3-3/16
3/32
2.987
3.193
0.103 in
10
A-153
-153
3-1/2
3-11/16
3/32
3.487
3.693
0.103 in
10
A-154
-154
3-3/4
3-15/16
3/32
3.737
3.943
0.103 in
10
A-155
-155
4
4-3/16
3/32
3.987
4.193
0.103 in
10
A-156
-156
4-1/4
4-7/16
3/32
4.237
4.443
0.103 in
10
A-157
-157
4-1/2
4-11/16
3/32
4.487
4.693
0.103 in
4
A-158
-158
4-3/4
4-15/16
3/32
4.737
4.943
0.103 in
4
A-160
-160
5-1/4
5-7/16
3/32
5.237
5.443
0.103 in
4
A-161
-161
5-1/2
5-11/16
3/32
5.487
5.693
0.103 in
4
A-163
-163
6
6-3/16
3/32
5.987
6.193
0.103 in
2
A-164
-164
6-1/4
6-7/16
3/32
6.237
6.443
0.103 in
2
A-170
-170
7-3/4
7-15/16
3/32
7.737
7.943
0.103 in
2
A-172
-172
8-1/4
8-7/16
3/32
8.237
8.443
0.103 in
2
A-202
-202
1/4
1/2
1/8
0.234
0.512
0.139 in
50
A-203
-203
5/16
9/16
1/8
0.296
0.574
0.139 in
50
A-204
-204
3/8
5/8
1/8
0.359
0.637
0.139 in
50
A-205
-205
7/16
11/16
1/8
0.421
0.699
0.139 in
50
A-206
-206
1/2
3/4
1/8
0.484
0.762
0.139 in
50
A-208
-208
5/8
7/8
1/8
0.609
0.887
0.139 in
20
A-209
-209
11/16
15/16
1/8
0.671
0.949
0.139 in
20
A-210-ORING
-210
3/4
1
1/8
0.734
1.012
0.139 in
20
A-213
-213
15/16
1-3/16
1/8
0.921
1.199
0.139 in
20
A-215
-215
1-1/16
1-5/16
1/8
1.046
1.324
0.139 in
20
A-216
-216
1-1/8
1-3/8
1/8
1.109
1.387
0.139 in
20
A-217
-217
1-3/16
1-7/16
1/8
1.171
1.449
0.139 in
20
A-219
-219
1-5/16
1-9/16
1/8
1.296
1.574
0.139 in
20
A-220
-220
1-3/8
1-5/8
1/8
1.359
1.637
0.139 in
20
A-222
-222
1-1/2
1-3/4
1/8
1.484
1.762
0.139 in
20
A-223
-223
1-5/8
1-7/8
1/8
1.609
1.887
0.139 in
20
A-224
-224
1-3/4
2
1/8
1.734
2.012
0.139 in
20
A-225
-225
1-7/8
2-1/8
1/8
1.859
2.137
0.139 in
20
A-226
-226
2
2-1/4
1/8
1.984
2.262
0.139 in
20
A-227
-227
2-1/8
2-3/8
1/8
2.109
2.387
0.139 in
20
A-229
-229
2-3/8
2-5/8
1/8
2.359
2.637
0.139 in
20
A-230
-230
2-1/2
2-3/4
1/8
2.484
2.762
0.139 in
10
A-234-VITON
-234
3
3-1/4
1/8
2.984
3.262
0.139 in
10
A-235
-235
3-1/8
3-3/8
1/8
3.109
3.387
0.139 in
10
A-237
-237
3-3/8
3-5/8
1/8
3.359
3.637
0.139 in
10
A-239-ORING
-239
3-5/8
3-7/8
1/8
3.609
3.887
0.139 in
10
A-240-ORING
-240
3-3/4
4
1/8
3.734
4.012
0.139 in
10
A-241-ORING
-241
3-7/8
4-1/8
1/8
3.859
4.137
0.139 in
10
A-243
-243
4-1/8
4-3/8
1/8
4.109
4.387
0.139 in
10
A-245
-245
4-3/8
4-5/8
1/8
4.359
4.637
0.139 in
4
A-246
-246
4-1/2
4-3/4
1/8
4.484
4.762
0.139 in
4
A-247
-247
4-5/8
4-7/8
1/8
4.609
4.887
0.139 in
4
A-249
-249
4-7/8
5-1/8
1/8
4.859
5.137
0.139 in
4
A-250
-250
5
5-1/4
1/8
4.984
5.262
0.139 in
4
A-253
-253
5-3/8
5-5/8
1/8
5.359
5.637
0.139 in
4
A-254
-254
5-1/2
5-3/4
1/8
5.484
5.762
0.139 in
4
A-255
-255
5-5/8
5-7/8
1/8
5.609
5.887
0.139 in
4
A-257
-257
5-7/8
6-1/8
1/8
5.859
6.137
0.139 in
2
A-258-ORING
-258
6
6-1/4
1/8
5.984
6.262
0.139 in
2
A-259
-259
6-1/4
6-1/2
1/8
6.234
6.512
0.139 in
2
A-260
-260
6-1/2
6-3/4
1/8
6.484
6.762
0.139 in
2
A-261
-261
6-3/4
7
1/8
6.734
7.012
0.139 in
2
A-262
-262
7
7-1/4
1/8
6.984
7.262
0.139 in
2
A-263
-263
7-1/4
7-1/2
1/8
7.234
7.512
0.139 in
2
A-264
-264
7-1/2
7-3/4
1/8
7.484
7.762
0.139 in
2
A-265
-265
7-3/4
8
1/8
7.734
8.012
0.139 in
2
A-266
-266
8
8-1/4
1/8
7.984
8.262
0.139 in
2
A-267
-267
8-1/4
8-1/2
1/8
8.234
8.512
0.139 in
2
A-268
-268
8-1/2
8-3/4
1/8
8.484
8.762
0.139 in
2
A-269
-269
8-3/4
9
1/8
8.734
9.012
0.139 in
2
A-274
-274
10
10-1/4
1/8
9.984
10.262
0.139 in
2
A-275
-275
10-1/2
10-3/4
1/8
10.484
10.762
0.139 in
2
A-276
-276
11
11-1/4
1/8
10.984
11.262
0.139 in
1
A-277
-277
11-1/2
11-3/4
1/8
11.484
11.762
0.139 in
1
A-278
-278
12
12-1/4
1/8
11.984
12.262
0.139 in
1
A-282
-282
16
16-1/4
1/8
15.955
16.233
0.139 in
1
A-311
-311
9/16
15/16
3/16
0.537
0.957
0.21 in
50
A-312
-312
5/8
1
3/16
0.6
1.02
0.21 in
50
A-313
-313
11/16
1-1/16
3/16
0.662
1.082
0.21 in
50
A-314
-314
3/4
1-1/8
3/16
0.725
1.145
0.21 in
50
A-315
-315
13/16
1-3/16
3/16
0.787
1.207
0.21 in
20
A-316
-316
7/8
1-1/4
3/16
0.85
1.27
0.21 in
50
A-318
-318
1
1-3/8
3/16
0.975
1.395
0.21 in
20
A-319
-319
1-1/16
1-7/16
3/16
1.037
1.457
0.21 in
50
A-320
-320
1-1/8
1-1/2
3/16
1.1
1.52
0.21 in
20
A-321
-321
1-3/16
1-9/16
3/16
1.162
1.582
0.21 in
20
A-322
-322
1-1/4
1-5/8
3/16
1.225
1.645
0.21 in
20
A-323
-323
1-5/16
1-11/16
3/16
1.287
1.707
0.21 in
10
A-324
-324
1-3/8
1-3/4
3/16
1.35
1.77
0.21 in
20
A-325
-325
1-1/2
1-7/8
3/16
1.475
1.895
0.21 in
20
A-326
-326
1-5/8
2
3/16
1.6
2.02
0.21 in
20
A-327
-327
1-3/4
2-1/8
3/16
1.725
2.145
0.21 in
20
A-328
-328
1-7/8
2-1/4
3/16
1.85
2.27
0.21 in
20
A-331
-331
2-1/4
2-5/8
3/16
2.225
2.645
0.21 in
20
A-332
-332
2-3/8
2-3/4
3/16
2.35
2.77
0.21 in
20
A-333
-333
2-1/2
2-7/8
3/16
2.475
2.895
0.21 in
20
A-335
-335
2-3/4
3-1/8
3/16
2.725
3.145
0.21 in
10
A-336
-336
2-7/8
3-1/4
3/16
2.85
3.27
0.21 in
10
A-337
-337
3
3-3/8
3/16
2.975
3.395
0.21 in
10
A-339
-339
3-1/4
3-5/8
3/16
3.225
3.645
0.21 in
10
A-340
-340
3-3/8
3-3/4
3/16
3.35
3.77
0.21 in
10
A-343
-343
3-3/4
4-1/8
3/16
3.725
4.145
0.21 in
4
A-344
-344
3-7/8
4-1/4
3/16
3.85
4.27
0.21 in
4
A-347
-347
4-1/4
4-5/8
3/16
4.225
4.645
0.21 in
4
A-348
-348
4-3/8
4-3/4
3/16
4.35
4.77
0.21 in
4
A-349
-349
4-1/2
4-7/8
3/16
4.475
4.895
0.21 in
4
A-350
-350
4-5/8
5
3/16
4.6
5.02
0.21 in
4
A-351
-351
4-3/4
5-1/8
3/16
4.725
5.145
0.21 in
4
A-352
-352
4-7/8
5-1/4
3/16
4.85
5.27
0.21 in
4
A-353
-353
5
5-3/8
3/16
4.975
5.395
0.21 in
4
A-355
-355
5-1/4
5-5/8
3/16
5.225
5.645
0.21 in
4
A-356
-356
5-3/8
5-3/4
3/16
5.35
5.77
0.21 in
4
A-358
-358
5-5/8
6
3/16
5.6
6.02
0.21 in
4
A-360
-360
5-7/8
6-1/4
3/16
5.85
6.27
0.21 in
4
A-362
-362
6-1/4
6-5/8
3/16
6.225
6.645
0.21 in
4
A-363
-363
6-1/2
6-7/8
3/16
6.475
6.895
0.21 in
4
A-364
-364
6-3/4
7-1/8
3/16
6.725
7.145
0.21 in
4
A-366
-366
7-1/4
7-5/8
3/16
7.225
7.645
0.21 in
2
A-367
-367
7-1/2
7-7/8
3/16
7.475
7.895
0.21 in
2
A-378
-378
10-1/2
10-7/8
3/16
10.475
10.895
0.21 in
1
A-426
-426
4-5/8
5-1/8
1/4
4.6
5.15
0.275 in
4
A-427
-427
4-3/4
5-1/4
1/4
4.725
5.275
0.275 in
4
A-428
-428
4-7/8
5-3/8
1/4
4.85
5.4
0.275 in
4
A-429
-429
5
5-1/2
1/4
4.975
5.525
0.275 in
4
A-432
-432
5-3/8
5-7/8
1/4
5.35
5.9
0.275 in
4
A-434
-434
5-5/8
6-1/8
1/4
5.6
6.15
0.275 in
4
A-435
-435
5-3/4
6-1/4
1/4
5.725
6.275
0.275 in
4
A-436
-436
5-7/8
6-3/8
1/4
5.85
6.4
0.275 in
4
A-437
-437
6
6-1/2
1/4
5.975
6.525
0.275 in
2
A-438
-438
6-1/4
6-3/4
1/4
6.225
6.775
0.275 in
2
A-439
-439
6-1/2
7
1/4
6.475
7.025
0.275 in
2
A-441
-441
7
7-1/2
1/4
6.975
7.525
0.275 in
2
A-443
-443
7-1/2
8
1/4
7.475
8.025
0.275 in
2
A-446
-446
8-1/2
9
1/4
8.475
9.025
0.275 in
2
A-448
-448
9-1/2
10
1/4
9.475
10.025
0.275 in
2
A-345
-345
4
4-3/8
3/16
3.975
4.395
0.21 in
4
A-113
-113
9/16
3/4
3/32
0.549
0.755
0.103 in
50
A-137
-137
2-1/16
2-1/4
3/32
2.05
2.256
0.103 in
20
A-207
-207
9/16
13/16
1/8
0.546
0.824
0.139 in
50
A-211
-211
13/16
1-1/16
1/8
0.796
1.074
0.139 in
20
A-212
-212
7/8
1-1/8
1/8
0.859
1.137
0.139 in
20
A-228
-228
2-1/4
2-1/2
1/8
2.234
2.512
0.139 in
20
A-330
-330
2-1/8
2-1/2
3/16
2.1
2.52
0.21 in
20
A-341
-341
3-1/2
3-7/8
3/16
3.475
3.895
0.21 in
4
A-354
-354
5-1/8
5-1/2
3/16
5.1
5.52
0.21 in
4
A-357
-357
5-1/2
5-7/8
3/16
5.475
5.895
0.21 in
4
A-425
-425
4-1/2
5
1/4
4.475
5.025
0.275 in
4
A-433
-433
5-1/2
6
1/4
5.475
6.025
0.275 in
4
A-440
-440
6-3/4
7-1/4
1/4
6.725
7.275
0.275 in
2
