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Standard Size O-Rings (Nominal Dimensions)
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Standard Size O-Rings (Nominal Dimensions)
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Explore our AS-568 & Extended Standard Size O-Rings including our new 5/32" Nominal Cross Section O-Rings. Precision Associates' O-Rings are available off the shelf in several standard compounds. Or try O-Rings in one of 1,200+ specialty materials in 20 polymer groups, including Viton®, AFLAS®, EPDM, Nitrile, HNBR (HSN), XNBR, Neoprene®, Butyl, XNBR, Silicone, Fluorosilicone, Perfluoroelastomer, Urethane, Hypalon®, and Hydrin®.
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Results 176 - 200 of 448
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Item #
C/S (inches)
C/S Tolerance (±)
I.D. (inches)
I.D. Tolerance (±)
O.D. (REF) (inches)
Nominal C/S (inches)
Nominal I.D. (inches)
Nominal O.D. (inches)
Metric C/S (mm)
Metric I.D. (mm)
Metric O.D. (mm)
1-236
0.139
0.004
3.234
0.024
3.512
1/8
3 1/4
3 1/2
3.5
82.1
89.2
1-237
0.139
0.004
3.359
0.024
3.637
1/8
3 3/8
3 5/8
3.5
85.3
92.4
1-238
0.139
0.004
3.484
0.024
3.762
1/8
3 1/2
3 3/4
3.5
88.5
95.6
1-239
0.139
0.004
3.609
0.028
3.887
1/8
3 5/8
3 7/8
3.5
91.7
98.7
1-240
0.139
0.004
3.734
0.028
4.012
1/8
3 3/4
4
3.5
94.8
101.9
1-241
0.139
0.004
3.859
0.028
4.137
1/8
3 7/8
4 1/8
3.5
98.0
105.1
1-242
0.139
0.004
3.984
0.028
4.262
1/8
4
4 1/4
3.5
101.2
108.3
1-243
0.139
0.004
4.109
0.028
4.387
1/8
4 1/8
4 3/8
3.5
104.4
111.4
1-244
0.139
0.004
4.234
0.030
4.512
1/8
4 1/4
4 1/2
3.5
107.5
114.6
1-245
0.139
0.004
4.359
0.030
4.637
1/8
4 3/8
4 5/8
3.5
110.7
117.8
1-246
0.139
0.004
4.484
0.030
4.762
1/8
4.5
4 3/4
3.5
113.9
121.0
1-247
0.139
0.004
4.609
0.030
4.887
1/8
4 5/8
4 7/8
3.5
117.1
124.1
1-248
0.139
0.004
4.734
0.030
5.012
1/8
4 3/4
5
3.5
120.2
127.3
1-249
0.139
0.004
4.859
0.035
5.137
1/8
4 7/8
5 1/8
3.5
123.4
130.5
1-250
0.139
0.004
4.984
0.035
5.262
1/8
5
5 1/4
3.5
126.6
133.7
1-251
0.139
0.004
5.109
0.035
5.387
1/8
5 1/8
5 3/8
3.5
129.8
136.8
1-252
0.139
0.004
5.234
0.035
5.512
1/8
5 1/4
5 1/2
3.5
132.9
140.0
1-253
0.139
0.004
5.359
0.035
5.637
1/8
5 3/8
5 5/8
3.5
136.1
143.2
1-254
0.139
0.004
5.484
0.035
5.762
1/8
5 1/2
5 3/4
3.5
139.3
146.4
1-255
0.139
0.004
5.609
0.035
5.887
1/8
5 5/8
5 7/8
3.5
142.5
149.5
1-256
0.139
0.004
5.734
0.035
6.012
1/8
5 3/4
6
3.5
145.6
152.7
1-257
0.139
0.004
5.859
0.035
6.137
1/8
5 7/8
6 1/8
3.5
148.8
155.9
1-258
0.139
0.004
5.984
0.035
6.262
1/8
6
6 1/4
3.5
152.0
159.1
1-259
0.139
0.004
6.234
0.040
6.512
1/8
6 1/4
6 1/2
3.5
158.3
165.4
1-260
0.139
0.004
6.484
0.040
6.762
1/8
6 1/2
6 3/4
3.5
164.7
171.8
Results 176 - 200 of 448
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