AS568 PTFE O-Rings

Standard O-Rings are available in 369 sizes as set up by the Aerospace Standard 568 published by the Society of Automotive Engineers. These sizes are designated by dash numbers shown on the 568 DASH Chart and are standardized by imperial dimensions. Standard O-Rings are specified by their inside diameter and cross section width. AS568 is the most commonly used standard in the U.S. for aerospace, automotive and general industrial applications.For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

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Cross Section Width (in)

Cross Section Width (mm)

Inside Diameter (mm)

Inside Diameter (in)

Item #	IntegrationID	Type	Material	Cross Section Width	Durometer	Inside Diameter	Cross Section Tolerance +/-	Inside Diameter Tolerance +/-	Size Reference - AS568	Units of Measure	Tube Size O.D.	Call for a Quote	O-Ring Industries

-249 PTFE	N/A 195405	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 123.42 mm4.859 in	N/A 0.004 in0.10 mm	N/A 0.035 in0.89 mm	N/A -249	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-250 PTFE	N/A 195406	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 126.59 mm4.984 in	N/A 0.004 in0.10 mm	N/A 0.035 in0.89 mm	N/A -250	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-251 PTFE	N/A 195407	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 129.77 mm5.109 in	N/A 0.004 in0.10 mm	N/A 0.035 in0.89 mm	N/A -251	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-252 PTFE	N/A 195408	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 132.94 mm5.234 in	N/A 0.004 in0.10 mm	N/A 0.035 in0.89 mm	N/A -252	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-253 PTFE	N/A 195409	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 136.12 mm5.359 in	N/A 0.004 in0.10 mm	N/A 0.035 in0.89 mm	N/A -253	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-254 PTFE	N/A 195410	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 139.29 mm5.484 in	N/A 0.004 in0.10 mm	N/A 0.035 in0.89 mm	N/A -254	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-255 PTFE	N/A 195411	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 142.47 mm5.609 in	N/A 0.004 in0.10 mm	N/A 0.035 in0.89 mm	N/A -255	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-256 PTFE	N/A 195412	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 145.64 mm5.734 in	N/A 0.004 in0.10 mm	N/A 0.035 in0.89 mm	N/A -256	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-257 PTFE	N/A 195413	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 148.82 mm5.859 in	N/A 0.004 in0.10 mm	N/A 0.035 in0.89 mm	N/A -257	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-258 PTFE	N/A 195414	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 151.99 mm5.984 in	N/A 0.004 in0.10 mm	N/A 0.035 in0.89 mm	N/A -258	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-259 PTFE	N/A 195415	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 158.34 mm6.234 in	N/A 0.004 in0.10 mm	N/A 0.040 in1.02 mm	N/A -259	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-260 PTFE	N/A 195416	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 164.69 mm6.484 in	N/A 0.004 in0.10 mm	N/A 0.040 in1.02 mm	N/A -260	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-261 PTFE	N/A 195417	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 171.04 mm6.734 in	N/A 0.004 in0.10 mm	N/A 0.040 in1.02 mm	N/A -261	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-262 PTFE	N/A 195418	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 177.39 mm6.984 in	N/A 0.004 in0.10 mm	N/A 0.040 in1.02 mm	N/A -262	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-263 PTFE	N/A 195419	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 183.74 mm7.234 in	N/A 0.004 in0.10 mm	N/A 0.045 in1.14 mm	N/A -263	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-264 PTFE	N/A 195420	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 190.09 mm7.484 in	N/A 0.004 in0.10 mm	N/A 0.045 in1.14 mm	N/A -264	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-265 PTFE	N/A 195421	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 196.44 mm7.734 in	N/A 0.004 in0.10 mm	N/A 0.045 in1.14 mm	N/A -265	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-266 PTFE	N/A 195422	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 202.79 mm7.984 in	N/A 0.004 in0.10 mm	N/A 0.045 in1.14 mm	N/A -266	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-267 PTFE	N/A 195423	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 209.14 mm8.234 in	N/A 0.004 in0.10 mm	N/A 0.050 in1.25 mm	N/A -267	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-268 PTFE	N/A 195424	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 215.49 mm8.484 in	N/A 0.004 in0.10 mm	N/A 0.050 in1.25 mm	N/A -268	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-269 PTFE	N/A 195425	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 221.84 mm8.734 in	N/A 0.004 in0.10 mm	N/A 0.050 in1.25 mm	N/A -269	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-270 PTFE	N/A 195426	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 228.19 mm8.984 in	N/A 0.004 in0.10 mm	N/A 0.050 in1.25 mm	N/A -270	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-271 PTFE	N/A 195427	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 234.54 mm9.234 in	N/A 0.004 in0.10 mm	N/A 0.055 in1.40 mm	N/A -271	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-272 PTFE	N/A 195428	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 240.89 mm9.484 in	N/A 0.004 in0.10 mm	N/A 0.055 in1.40 mm	N/A -272	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-273 PTFE	N/A 195429	N/A	N/A	N/A 0.139 in3.53 mm	N/A	N/A 247.24 mm9.734 in	N/A 0.004 in0.10 mm	N/A 0.055 in1.40 mm	N/A -273	N/A	N/A	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

176 - 200 of 374 | Results Per Page | View | Unit of Measure

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No Preference
0.74
1.07
1.24
1.42
1.78
10.46
10.69
10.77
10.82
100.97
101.19
101.27
101.32
104.14
104.37
107.32
107.54
107.62
107.67
110.49
110.72
113.67
113.89
113.97
114.02
116.84
117.07
12.07
12.29
12.37
12.42
120.02
120.24
120.32
120.37
123.19
123.42
126.37
126.59
126.67
126.72
129.54
129.77
13.64
13.87
13.94
132.72
132.94
133.02
133.07
135.89
136.12
139.07
139.29
139.37
14.00
142.24
142.47
145.42
145.64
145.72
148.59
148.82
15.24
15.47
15.54
15.60
151.77
151.99
152.07
158.12
158.34
158.42
16.81
164.47
164.69
164.77
17.04
17.12
17.17
170.82
171.04
171.12
177.17
177.39
177.47
18.42
18.64
18.72
18.77
183.52
183.74
183.82
189.87
19.99
190.09
190.17
196.22
196.44
196.52
2.06
2.57
2.84
2.90
20.22
20.29
20.35
202.57
202.79
202.87
208.92
209.14
209.22
21.59
21.82
21.89
21.95
215.27
215.49
215.57
221.62
221.84
221.92
227.97
228.19
228.27
23.16
23.39
23.47
23.52
234.32
234.54
234.62
24.77
24.99
240.67
240.89
240.97
247.02
247.24
247.32
25.07
25.12
253.37
253.59
26.34
26.57
26.64
26.70
266.07
266.29
27.94
278.77
278.99
28.17
28.24
28.30
29.51
29.74
29.82
29.87
291.47
291.69
3.63
3.68
304.17
304.39
31.12
31.34
31.42
31.47
316.87
32.69
32.92
32.99
329.55
329.57
329.79
33.05
34.29
34.52
34.59
34.65
342.27
354.97
355.19
36.09
36.17
367.67
37.47
37.69
37.77
37.82
380.37
380.59
39.34
393.07
4.34
4.42
4.47
40.64
40.87
40.94
405.26
41.00
417.96
42.52
43.82
430.66
44.04
44.12
44.17
443.36
45.69
456.06
46.99
468.76
47.22
47.29
47.35
48.90
481.46
494.16
5.23
5.28
5.94
50.17
50.39
50.47
50.52
506.86
52.07
53.34
53.57
53.64
53.70
532.26
55.25
557.66
56.52
56.74
56.82
56.87
58.42
582.65
59.69
59.92
59.99
6.02
6.07
60.05
608.10
61.60
62.87
63.09
63.17
63.22
633.50
64.77
658.85
658.88
66.04
66.27
66.34
66.40
67.95
69.22
69.44
69.52
69.57
7.52
7.59
7.65
71.12
72.39
72.62
72.69
72.75
75.57
75.79
75.87
75.92
78.74
78.97
81.92
82.14
82.22
82.27
85.09
85.32
88.27
88.49
88.57
88.62
9.12
9.19
9.25
91.44
91.67
94.62
94.84
94.92
94.97
97.79
98.02

No Preference
0.029
0.042
0.049
0.056
0.070
0.081
0.101
0.112
0.114
0.143
0.145
0.171
0.174
0.176
0.206
0.208
0.234
0.237
0.239
0.296
0.299
0.300
0.359
0.362
0.364
0.412
0.421
0.424
0.426
0.475
0.484
0.487
0.489
0.537
0.546
0.549
0.551
0.600
0.609
0.612
0.614
0.662
0.671
0.674
0.676
0.725
0.734
0.737
0.739
0.787
0.796
0.799
0.801
0.850
0.859
0.862
0.864
0.912
0.921
0.924
0.926
0.975
0.984
0.987
0.989
1.037
1.046
1.049
1.051
1.100
1.109
1.112
1.114
1.162
1.171
1.174
1.176
1.225
1.234
1.237
1.239
1.287
1.296
1.299
1.301
1.350
1.359
1.362
1.364
1.421
1.424
1.475
1.484
1.487
1.489
1.549
1.600
1.609
1.612
1.614
1.674
1.725
1.734
1.737
1.739
1.799
1.850
1.859
1.862
1.864
1.925
1.975
1.984
1.987
1.989
10.475
10.484
10.975
10.984
11.475
11.484
11.975
11.984
12.475
12.975
12.984
13.475
13.975
13.984
14.475
14.975
14.984
15.475
15.955
16.455
16.955
17.455
17.955
18.455
18.955
19.455
19.955
2.050
2.100
2.109
2.112
2.114
2.175
2.225
2.234
2.237
2.239
2.300
2.350
2.359
2.362
2.364
2.425
2.475
2.484
2.487
2.489
2.550
2.600
2.609
2.612
2.614
2.675
2.725
2.734
2.737
2.739
2.800
2.850
2.859
2.862
2.864
2.975
2.984
2.987
2.989
20.955
21.955
22.940
23.940
24.940
25.940
3.100
3.109
3.225
3.234
3.237
3.239
3.350
3.359
3.475
3.484
3.487
3.489
3.600
3.609
3.725
3.734
3.737
3.739
3.850
3.859
3.975
3.984
3.987
3.989
4.100
4.109
4.225
4.234
4.237
4.239
4.350
4.359
4.475
4.484
4.487
4.489
4.600
4.609
4.725
4.734
4.737
4.739
4.850
4.859
4.975
4.984
4.987
4.989
5.100
5.109
5.225
5.234
5.237
5.239
5.350
5.359
5.475
5.484
5.487
5.600
5.609
5.725
5.734
5.737
5.850
5.859
5.975
5.984
5.987
6.225
6.234
6.237
6.475
6.484
6.487
6.725
6.734
6.737
6.975
6.984
6.987
7.225
7.234
7.237
7.475
7.484
7.487
7.725
7.734
7.737
7.975
7.984
7.987
8.225
8.234
8.237
8.475
8.484
8.487
8.725
8.734
8.737
8.975
8.984
8.987
9.225
9.234
9.237
9.475
9.484
9.487
9.725
9.734
9.737
9.975
9.984