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Dynamic O-Ring Design Chart

Explore Data for Dynamic O-Rings for Rods, Pistons, and More.

Dynamic Rod Seal Dimensions Chart
*Recommended surface finish: 16 Ra max. for gases and 32 Ra max. for fluids. All dynamic applications to have 16 Ra max.

Dynamic O-Ring Gland Width and Depth Default Recommendations

AS 568A Series
O-Ring Cross Section
Gland Width
Gland Corner Radii
Nom
Tol +/-
Nom
Tol +/-
(R1)
(R2)
-0XX 0.07 0.003 0.095 0.002 0.007 0.005
-1XX 0.103 0.004 0.142 0.003 0.007 0.005
-2XX 0.139 0.004 0.189 0.003 0.017 0.005
-3XX 0.21 0.005 0.283 0.003 0.027 0.005
-4XX 0.275 0.006 0.377 0.003 0.027 0.005

Dynamic O-Ring Gland Diameter Default Recommendations

Dash Size
O-Ring Cross Section
O-Ring Diameter
O.D. Sealing Type Gland Diameter (D)
O.D. Sealing Type Piston Diameter (E)
O.D. Sealing Type Bore Diameter (F)
I.D. Sealing Type Gland Diameter (D)
I.D. Sealing Type Piston Diameter (E)
I.D. Sealing Type Bore Diameter (F)
Nom
Tol +/-
Nom
Tol +/-
+.000/-.002
+.000/-.001
+.002/-.000
+.002/-.000
+.000/-.002
+.001/-.000
-006 0.07 0.003 0.114 0.005 0.139 0.247 0.249 0.234 0.124 0.126
-007 0.07 0.003 0.145 0.005 0.17 0.278 0.28 0.265 0.155 0.157
-008 0.07 0.003 0.176 0.005 0.201 0.309 0.311 0.296 0.186 0.188
-009 0.07 0.003 0.208 0.005 0.233 0.341 0.343 0.328 0.218 0.22
-010 0.07 0.003 0.239 0.005 0.264 0.372 0.374 0.359 0.249 0.251
-011 0.07 0.003 0.301 0.005 0.326 0.434 0.436 0.421 0.311 0.313
-012 0.07 0.003 0.364 0.005 0.389 0.497 0.499 0.484 0.374 0.376
-104 0.103 0.003 0.112 0.005 0.136 0.31 0.312 0.3 0.124 0.126
-105 0.103 0.003 0.143 0.005 0.167 0.341 0.343 0.331 0.155 0.157
-106 0.103 0.003 0.174 0.005 0.198 0.372 0.374 0.362 0.186 0.188
-107 0.103 0.003 0.206 0.005 0.23 0.404 0.406 0.394 0.218 0.22
-108 0.103 0.003 0.237 0.005 0.261 0.435 0.437 0.425 0.249 0.251
-109 0.103 0.003 0.299 0.005 0.323 0.497 0.499 0.487 0.311 0.313
-110 0.103 0.003 0.362 0.005 0.386 0.56 0.562 0.55 0.374 0.376
-111 0.103 0.003 0.424 0.005 0.448 0.622 0.624 0.612 0.436 0.438
-112 0.103 0.003 0.487 0.005 0.511 0.685 0.687 0.675 0.499 0.501
-113 0.103 0.003 0.549 0.007 0.573 0.747 0.749 0.737 0.561 0.563
-114 0.103 0.003 0.612 0.009 0.636 0.81 0.812 0.8 0.624 0.626
-115 0.103 0.003 0.674 0.009 0.698 0.872 0.874 0.862 0.686 0.688
-116 0.103 0.003 0.737 0.009 0.761 0.935 0.937 0.925 0.749 0.751
-201 0.139 0.004 0.171 0.005 0.195 0.434 0.437 0.427 0.185 0.188
-202 0.139 0.004 0.234 0.005 0.258 0.497 0.5 0.49 0.248 0.251
-203 0.139 0.004 0.296 0.005 0.32 0.559 0.562 0.552 0.31 0.313
-204 0.139 0.004 0.359 0.005 0.383 0.622 0.625 0.615 0.373 0.376
-205 0.139 0.004 0.421 0.005 0.445 0.684 0.687 0.677 0.435 0.438
-206 0.139 0.004 0.484 0.005 0.508 0.747 0.75 0.74 0.498 0.501
-207 0.139 0.004 0.546 0.007 0.57 0.809 0.812 0.802 0.56 0.563
-208 0.139 0.004 0.609 0.009 0.633 0.872 0.875 0.865 0.623 0.626
-209 0.139 0.004 0.671 0.009 0.695 0.934 0.937 0.927 0.685 0.688
-210 0.139 0.004 0.734 0.01 0.758 0.997 1 0.99 0.748 0.751
-211 0.139 0.004 0.796 0.01 0.82 1.059 1.062 1.052 0.81 0.813
-212 0.139 0.004 0.859 0.01 0.883 1.122 1.125 1.115 0.873 0.876
-213 0.139 0.004 0.921 0.01 0.945 1.184 1.187 1.177 0.935 0.938
-2147 0.139 0.004 0.984 0.01 1.008 1.247 1.25 1.24 0.998 1.001
-215 0.139 0.004 1.046 0.01 1.07 1.309 1.312 1.302 1.06 1.063
-216 0.139 0.004 1.109 0.012 1.133 1.372 1.375 1.365 1.123 1.126
-217 0.139 0.004 1.171 0.012 1.195 1.434 1.437 1.427 1.185 1.188
-218 0.139 0.004 1.234 0.012 1.258 1.497 1.5 1.49 1.248 1.251
-219 0.139 0.004 1.296 0.012 1.32 1.559 1.562 1.552 1.31 1.313
-220 0.139 0.004 1.359 0.012 1.383 1.622 1.625 1.619 1.373 1.376
-221 0.139 0.004 1.421 0.012 1.445 1.684 1.687 1.677 1.435 1.438
-222 0.139 0.004 1.484 0.015 1.508 1.747 1.75 1.74 1.498 1.501
-309 0.21 0.005 0.412 0.005 0.442 0.809 0.812 0.805 0.435 0.438
-310 0.21 0.005 0.475 0.005 0.505 0.872 0.875 0.868 0.498 0.501
-311 0.21 0.005 0.537 0.007 0.567 0.934 0.937 0.93 0.56 0.563
-312 0.21 0.005 0.6 0.009 0.63 0.997 1 0.993 0.623 0.626
-313 0.21 0.005 0.662 0.009 0.692 1.059 1.062 1.055 0.685 0.688
-314 0.21 0.005 0.725 0.01 0.755 1.122 1.125 1.118 0.748 0.751
-315 0.21 0.005 0.787 0.01 0.817 1.184 1.187 1.18 0.81 0.813
-316 0.21 0.005 0.85 0.01 0.88 1.247 1.25 1.243 0.873 0.876
-317 0.21 0.005 0.912 0.01 0.942 1.309 1.312 1.305 0.935 0.938
-318 0.21 0.005 0.975 0.01 1.005 1.372 1.375 1.368 0.998 1.001
-319 0.21 0.005 1.037 0.01 1.067 1.434 1.437 1.43 1.06 1.063
-320 0.21 0.005 1.1 0.012 1.13 1.497 1.5 1.493 1.123 1.126
-321 0.21 0.005 1.162 0.012 1.192 1.559 1.562 1.555 1.185 1.188
-322 0.21 0.005 1.225 0.012 1.255 1.622 1.625 1.618 1.248 1.251
-323 0.21 0.005 1.287 0.012 1.317 1.684 1.687 1.68 1.31 1.313
-324 0.21 0.005 1.35 0.012 1.38 1.747 1.75 1.743 1.373 1.376
-325 0.21 0.005 1.475 0.015 1.505 1.872 1.875 1.868 1.498 1.501
-326 0.21 0.005 1.6 0.015 1.63 1.997 2 1.993 1.623 1.626
-327 0.21 0.005 1.725 0.015 1.755 2.122 2.125 2.118 1.748 1.751
-328 0.21 0.005 1.85 0.015 1.88 2.247 2.25 2.243 1.873 1.876
-329 0.21 0.005 1.975 0.018 2.005 2.372 2.375 2.368 1.998 2.001
-330 0.21 0.005 2.1 0.018 2.13 2.497 2.5 2.493 2.123 2.126
-331 0.21 0.005 2.225 0.018 2.255 2.622 2.625 2.618 2.248 2.251
-332 0.21 0.005 2.35 0.018 2.38 2.747 2.75 2.743 2.373 2.376
-333 0.21 0.005 2.475 0.02 2.505 2.872 2.875 2.868 2.498 2.501
-334 0.21 0.005 2.6 0.02 2.63 2.997 3 2.993 2.623 2.626
-335 0.21 0.005 2.725 0.02 2.755 3.122 3.125 3.118 2.748 2.751
-336 0.21 0.005 2.85 0.02 2.88 3.247 3.25 3.243 2.873 2.876
-337 0.21 0.005 2.975 0.024 3.005 3.372 3.375 3.368 2.998 3.001
-338 0.21 0.005 3.1 0.024 3.13 3.497 3.5 3.493 3.123 3.126
-339 0.21 0.005 3.225 0.024 3.255 3.622 3.625 3.618 3.248 3.251
-340 0.21 0.005 3.35 0.024 3.38 3.747 3.75 3.743 3.373 3.376
-341 0.21 0.005 3.475 0.024 3.505 3.872 3.875 3.868 3.498 3.501
-342 0.21 0.005 3.6 0.028 3.63 3.997 4 3.993 3.623 3.626
-343 0.21 0.005 3.725 0.028 3.755 4.122 4.125 4.118 3.748 3.751
-344 0.21 0.005 3.85 0.028 3.88 4.247 4.25 4.243 3.873 3.876
-345 0.21 0.005 3.975 0.028 4.005 4.372 4.375 4.368 3.998 4.001
-346 0.21 0.005 4.1 0.028 4.13 4.497 4.5 4.493 4.123 4.126
-347 0.21 0.005 4.225 0.03 4.255 4.622 4.625 4.618 4.248 4.251
-348 0.21 0.005 4.35 0.03 4.38 4.747 4.75 4.743 4.373 4.376
-349 0.21 0.005 4.475 0.03 4.505 4.872 4.875 4.868 4.498 4.501
-425 0.275 0.006 4.475 0.033 4.528 4.998 5.002 4.971 4.497 4.501
-426 0.275 0.006 4.6 0.033 4.653 5.123 5.127 5.096 4.622 4.626
-427 0.275 0.006 4.725 0.033 4.778 5.248 5.252 5.221 4.747 4.751
-428 0.275 0.006 4.85 0.033 4.903 5.373 5.377 5.346 4.872 4.876
-429 0.275 0.006 4.975 0.037 5.028 5.498 5.502 5.471 4.997 5.001
-430 0.275 0.006 5.1 0.037 5.153 5.623 5.627 5.596 5.122 5.126
-431 0.275 0.006 5.225 0.037 5.278 5.748 5.752 5.721 5.247 5.251
-432 0.275 0.006 5.35 0.037 5.403 5.873 5.877 5.846 5.372 5.376
-433 0.275 0.006 5.475 0.037 5.528 5.998 6.002 5.971 5.497 5.501
-434 0.275 0.006 5.6 0.037 5.653 6.123 6.127 6.096 5.622 5.626
-435 0.275 0.006 5.725 0.037 5.778 6.248 6.252 6.221 5.747 5.751
-436 0.275 0.006 5.85 0.037 5.903 6.373 6.377 6.346 5.872 5.876
-437 0.275 0.006 5.975 0.037 6.028 6.498 6.502 6.471 5.997 6.001
-438 0.275 0.006 6.225 0.04 6.278 6.748 6.752 6.721 6.247 6.251
-439 0.275 0.006 6.475 0.04 6.528 6.998 7.002 6.971 6.497 6.501
-440 0.275 0.006 6.725 0.04 6.778 7.248 7.252 7.221 6.747 6.751
-441 0.275 0.006 6.975 0.04 7.028 7.498 7.502 7.471 6.997 7.001
-442 0.275 0.006 7.225 0.045 7.278 7.748 7.752 7.721 7.247 7.251
-443 0.275 0.006 7.475 0.045 7.528 7.998 8.002 7.971 7.497 7.501
-444 0.275 0.006 7.725 0.045 7.778 8.248 8.252 8.221 7.747 7.751
-445 0.275 0.006 7.975 0.045 8.028 8.498 8.502 8.471 7.997 8.001
-446 0.275 0.006 8.475 0.055 8.528 8.998 9.002 8.971 8.497 8.501
-447 0.275 0.006 8.975 0.055 9.028 9.498 9.502 9.471 8.997 9.001
-448 0.275 0.006 9.475 0.055 9.528 9.998 10.002 9.971 9.497 9.501
-449 0.275 0.006 9.975 0.055 10.028 10.498 10.502 10.471 9.997 10.001
-450 0.275 0.006 10.475 0.06 10.528 10.998 11.002 10.971 10.497 10.501
-451 0.275 0.006 10.975 0.06 11.028 11.498 11.502 11.471 10.997 11.001
-452 0.275 0.006 11.475 0.06 11.528 11.998 12.002 11.971 11.497 11.501
-453 0.275 0.006 11.975 0.06 12.028 12.498 12.502 12.471 11.997 12.001
-454 0.275 0.006 12.475 0.06 12.528 12.998 13.002 12.971 12.497 12.501
-455 0.275 0.006 12.975 0.06 13.028 13.498 13.502 13.471 12.997 13.001
-456 0.275 0.006 13.475 0.07 13.528 13.998 14.002 13.971 13.497 13.501
-457 0.275 0.006 13.975 0.07 14.028 14.498 14.502 14.471 13.997 14.001
-458 0.275 0.006 14.475 0.07 14.528 14.998 15.002 14.971 14.497 14.501
-459 0.275 0.006 14.975 0.07 15.028 15.498 15.502 15.471 14.997 15.001
-460 0.275 0.006 15.475 0.07 15.528 15.998 16.002 15.971 15.497 15.501

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