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70 Durometer Buna-N O-Ring, Inch OD, 2-3/8 Inch ID, 0.10 Inch Width
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
568-142
Alternate Part Numbers
Alternate Part Number
568-142 ,
Alternate Part Number
C1CD99 ,
Alternate Part Number
MI-08740380 ,
Alternate Part Number
MINO-00407X90380
What's the temp range on this O-ring? Gotta make sure it can handle what I'm throwin' at it.
Question by: Howard S on Jul 8, 2025, 4:44 PM
These Buna-N O-rings can handle temperatures from -40°F all the way up to 240°F.
Answer by: Customer Support on Jul 9, 2025, 9:52 PM
Got a cylinder that needs a new o-ring and the groove measures out to about 2.36 inches on the inside diameter. This the right fit?
Question by: Roger H on Sep 5, 2025, 2:21 PM
At 2.362 inches actual ID, that lines up real well with what you're describing. The actual OD comes in at 2.568 inches and the width runs 0.103 inches, so as long as your groove was cut for something in that neighborhood, you should be in good shape. The nominal sizing is 2-3/8 inch ID by 2-9/16 inch OD with a 3/32 inch width, which matches standard dash size -142.
Answer by: Customer Support on Sep 7, 2025, 6:13 AM
got a groove cut for a -142 o-ring, is this the right dash size?
Question by: Rod G on Jun 13, 2025, 2:03 PM
Match-up is straightforward here since this is a dash size -142 O-ring, with a nominal 2-3/8 inch ID and 2-9/16 inch OD.
Answer by: Customer Support on Jun 15, 2025, 6:48 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
