.210″ C/S

.210″ Cross Section O-Rings (Nominal Size 3/16″ Cross Section)

Actual Inches
Actual Millimeters
AS 568
Dash #
Inside
Diameter
Tol.
Cross
Section
Tol.
Inside
Diameter
Tol.
Cross
Section
Tol.
-309
.412
.005
.210
.005
10.46
0.13
5.33
0.13
-310
.475
.005
.210
.005
12.07
0.13
5.33
0.13
-311
.537
.007
.210
.005
13.64
0.18
5.33
0.13
-312
.600
.009
.210
.005
15.24
0.23
5.33
0.13
-313
.662
.009
.210
.005
16.81
0.23
5.33
0.13
-314
.725
.010
.210
.005
18.42
0.25
5.33
0.13
-315
.787
.010
.210
.005
19.99
0.25
5.33
0.13
-316
.850
.010
.210
.005
21.59
0.25
5.33
0.13
-317
.912
.010
.210
.005
23.16
0.25
5.33
0.13
-318
.975
.010
.210
.005
24.77
0.25
5.33
0.13
-319
1.034
.010
.210
.005
26.26
0.25
5.33
0.13
-320
1.100
.012
.210
.005
27.94
0.30
5.33
0.13
-321
1.162
.012
.210
.005
29.51
0.30
5.33
0.13
-322
1.225
.012
.210
.005
31.12
0.30
5.33
0.13
-323
1.287
.012
.210
.005
32.69
0.30
5.33
0.13
-324
1.350
.012
.210
.005
34.29
0.30
5.33
0.13
-325
1.475
.015
.210
.005
37.47
0.38
5.33
0.13
-326
1.600
.015
.210
.005
40.64
0.38
5.33
0.13
-327
1.725
.015
.210
.005
43.82
0.38
5.33
0.13
-328
1.850
.015
.210
.005
46.99
0.38
5.33
0.13
-329
1.975
.018
.210
.005
50.17
0.46
5.33
0.13
-330
2.100
.018
.210
.005
53.34
0.46
5.33
0.13
-331
2.225
.018
.210
.005
56.52
0.46
5.33
0.13
-332
2.350
.018
.210
.005
59.69
0.46
5.33
0.13
-333
2.475
.020
.210
.005
62.87
0.51
5.33
0.13
-334
2.600
.020
.210
.005
66.04
0.51
5.33
0.13
-335
2.725
.020
.210
.005
69.22
0.51
5.33
0.13
-336
2.850
.020
.210
.005
72.39
0.51
5.33
0.13
-337
2.975
.024
.210
.005
75.57
0.61
5.33
0.13
-338
3.100
.024
.210
.005
78.74
0.61
5.33
0.13
-339
3.225
.024
.210
.005
81.92
0.61
5.33
0.13
-340
3.350
.024
.210
.005
85.09
0.61
5.33
0.13
-341
3.475
.024
.210
.005
88.27
0.61
5.33
0.13
-342
3.600
.028
.210
.005
91.44
0.71
5.33
0.13
-343
3.725
.028
.210
.005
94.62
0.71
5.33
0.13
-344
3.850
.028
.210
.005
97.79
0.71
5.33
0.13
-345
3.975
.028
.210
.005
100.97
0.71
5.33
0.13
-346
4.100
.028
.210
.005
104.14
0.71
5.33
0.13
-347
4.225
.030
.210
.005
107.32
0.76
5.33
0.13
-348
4.350
.030
.210
.005
110.49
0.76
5.33
0.13
-349
4.475
.030
.210
.005
113.67
0.76
5.33
0.13
-350
4.600
.030
.210
.005
116.84
0.76
5.33
0.13
-351
4.725
.030
.210
.005
120.02
0.76
5.33
0.13
-352
4.850
.030
.210
.005
123.19
0.76
5.33
0.13
-353
4.975
.037
.210
.005
126.37
0.94
5.33
0.13
-354
5.100
.037
.210
.005
129.54
0.94
5.33
0.13
-355
5.225
.037
.210
.005
132.72
0.94
5.33
0.13
-356
5.350
.037
.210
.005
135.89
0.94
5.33
0.13
-357
5.475
.037
.210
.005
139.07
0.94
5.33
0.13
-358
5.600
.037
.210
.005
142.24
0.94
5.33
0.13
-359
5.725
.037
.210
.005
145.42
0.94
5.33
0.13
-360
5.850
.037
.210
.005
148.59
0.94
5.33
0.13
-361
5.975
.037
.210
.005
151.77
0.94
5.33
0.13
-362
6.225
.040
.210
.005
158.12
1.02
5.33
0.13
-363
6.475
.040
.210
.005
164.47
1.02
5.33
0.13
-364
6.725
.040
.210
.005
170.82
1.02
5.33
0.13
-365
6.975
.040
.210
.005
177.17
1.02
5.33
0.13
-366
7.225
.045
.210
.005
183.52
1.14
5.33
0.13
-367
7.475
.045
.210
.005
189.87
1.14
5.33
0.13
-368
7.725
.045
.210
.005
196.22
1.14
5.33
0.13
-369
7.975
.045
.210
.005
202.57
1.14
5.33
0.13
-370
8.225
.050
.210
.005
208.92
1.27
5.33
0.13
-371
8.475
.050
.210
.005
215.27
1.27
5.33
0.13
-372
8.725
.050
.210
.005
221.62
1.27
5.33
0.13
-373
8.975
.050
.210
.005
227.97
1.27
5.33
0.13
-374
9.225
.055
.210
.005
234.32
1.40
5.33
0.13
-375
9.475
.055
.210
.005
240.67
1.40
5.33
0.13
-376
9.725
.055
.210
.005
247.02
1.40
5.33
0.13
-377
9.925
.055
.210
.005
253.37
1.40
5.33
0.13
-378
10.475
.060
.210
.005
266.07
1.52
5.33
0.13
-379
10.975
.060
.210
.005
278.77
1.52
5.33
0.13
-380
11.475
.065
.210
.005
291.47
1.65
5.33
0.13
-381
11.975
.065
.210
.005
304.17
1.65
5.33
0.13
-382
12.975
.065
.210
.005
329.57
1.65
5.33
0.13
-383
13.975
.070
.210
.005
354.97
1.78
5.33
0.13
-384
14.975
.070
.210
.005
380.37
1.78
5.33
0.13
-385
15.955
.075
.210
.005
405.26
1.91
5.33
0.13
-386
16.955
.075
.210
.005
430.66
1.91
5.33
0.13
-387
17.955
.085
.210
.005
456.06
2.16
5.33
0.13
-388
18.955
.090
.210
.005
481.46
2.29
5.33
0.13
-389
19.955
.095
.210
.005
506.86
2.41
5.33
0.13
-390
20.955
.095
.210
.005
532.26
2.41
5.33
0.13

A full part number is generated by inserting the material identifier between AS568- and -*** with *** being the size of the O-Ring. Some examples of the many materials we can make any of these O-Rings in are:

Examples of Some Common Material Identifiers
NE50: Neoprene, 50 Durometer
NE70: Neoprene, 70 Durometer
NI60: Nitrile (Buna-N), 60 Durometer
EP60: EPDM, 60 Durometer
1056: Silver Plated Aluminum filled Silicone
1167: Silver Plated Copper filled Fluorosilicone
FS70: Fluorosilicone, 70 Durometer
SI70: Silicone, 70 Durometer

Examples of full part numbers are:

AS568-SI70-371 – This indicates a -371 size, as per the chart above, in a 70 Durometer Silicone

1056-0390 – This indicates a -390 size, as per the chart above, in a Silver Plated Aluminum filled Silicone (see EMI/RFI Shielding section for more information)

Postal Address

SAS Industries Inc. PO Box 68
Manorville, NY 11949

Physical Address

939 Wading River Manor Rd.
Manorville, NY 11949

Physical Address

100 Corporate Drive,
Elizabeth City, NC 27909

Call Us at

631.727.1441

Hours Of Operation

Office

Monday to Thrusday: 7:00 AM – 5:00 PM
Friday: 8:00 AM – 12:00 PM
Saturday & Sunday Closed

Factory

Monday to ThuRsday: 7:00 AM – 4:30 PM
Friday, Saturday & Sunday Closed