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70 Durometer Buna-N O-Ring, Inch OD, 2-1/2 Inch ID, 0.10 Inch Width
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
568-144
Alternate Part Numbers
Alternate Part Number
C1CE12 ,
Alternate Part Number
MI-08740382 ,
Alternate Part Number
MINO-00407X90382
got an o-ring stamped -144, is this the right one and what are the real measurements?
Question by: Larry C on Nov 7, 2025, 7:11 PM
For dash size -144, the actual dimensions on this Buna-N O-ring are 2.487 inch ID, 2.693 inch OD, and 0.103 inch width, with nominal sizing called out as 2-1/2 inch ID, 2-11/16 inch OD, and 3/32 inch width.
Answer by: Customer Support on Nov 9, 2025, 6:41 AM
These come in a pack of 20, right? Just want to make sure before I order, got a handful of cylinders to go through and don't want to be short.
Question by: Gene G on Feb 22, 2026, 4:53 PM
the package quantity is 20 per order. Each ring carries an actual ID of 2.487 inches, an actual OD of 2.693 inches, and an actual width of 0.103 inch, so if you're pulling the dash size -144 spec for those cylinders, you're in the right spot. Stocking up on a full pack makes sense when you've got multiple units to service at once.
Answer by: Customer Support on Feb 24, 2026, 6:56 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
