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Rod and Piston Gland Design for Basic Dynamic Applications

Dynamic o-rings with rod and piston gland designs are used for most basic dynamic applications. Dynamic o-rings are diverse, providing a wide range of uses, and selecting the right one for your application is key for achieving maximum o-ring performance. This dynamic o-ring groove design guide for rod and piston glands will help you find the dynamic o-ring that’s right for your application. Once you know the exact o-ring you need, you can quickly and easily order online from the world's largest inventory network.

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Dynamic Rod and Piston Gland

* 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 and Diameter Default Recomendations

AS568 Dash Sizes O-Ring Cross-Section Gland Width
(W)		 Gland Corner Radii
(Max.)
dd Nom. Tol (+/-) Nom. Tol (+/-) R1 R2
-0XX 0.070 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 0.210 0.005 0.283 0.003 0.027 0.005
-4XX 0.275 0.006 0.377 0.003 0.027 0.005

Dash Size O-Ring
Cross-Section		 O-Ring Diameter

O.D. Sealing Type
Gland Dia
(D)

 O.D. Sealing Type
Piston Dia
(E)		 O.D. Sealing Type
Bore Dia
(F)		 I.D. Sealing Type
Gland Dia
(G)		 I.D. Sealing Type
Rod Dia
(H)		 I.D. Sealing Type
Bore Dia
(I)
  Nom Tol +/- Nom Tol +/- +.000 / -.002 +.000 / -.001 +.002 / -.000 +.002 / -.000 +.000 / -.002 +.001 / -.000
-006 0.070 0.003 0.114 0.005 0.139 0.247 0.249 0.234 0.124 0.126
-007 0.070 0.003 0.145 0.005 0.170 0.278 0.280 0.265 0.155 0.157
-008 0.070 0.003 0.176 0.005 0.201 0.309 0.311 0.296 0.186 0.188
-009 0.070 0.003 0.208 0.005 0.233 0.341 0.343 0.328 0.218 0.220
-010 0.070 0.003 0.239 0.005 0.264 0.372 0.374 0.359 0.249 0.251
-011 0.070 0.003 0.301 0.005 0.326 0.434 0.436 0.421 0.311 0.313
-012 0.070 0.003 0.364 0.005 0.389 0.497 0.499 0.484 0.374 0.376

Dash Size O-Ring
Cross-Section		 O-Ring Diameter O.D. Sealing Type
Gland Dia
(D)		 O.D. Sealing Type
Piston Dia
(E)		 O.D. Sealing Type
Bore Dia
(F)		 I.D. Sealing Type
Gland Dia
(G)		 I.D. Sealing Type
Rod Dia
(H)		 I.D. Sealing Type
Bore Dia
(I)
  Nom Tol +/- Nom Tol +/- +.000 / -.002 +.000 / -.001 +.002 / -.000 +.002 / -.000 +.000 / -.002 +.001 / -.000
-104 0.103 0.003 0.112 0.005 0.136 0.310 0.312 0.300 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 0.230 0.404 0.406 0.394 0.218 0.220
-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 0.560 0.562 0.550 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 0.810 0.812 0.800 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

Dash Size O-Ring
Cross-Section		 O-Ring Diameter O.D. Sealing Type
Gland Dia
(D)		 O.D. Sealing Type
Piston Dia
(E)		 O.D. Sealing Type
Bore Dia
(F)		 I.D. Sealing Type
Gland Dia
(G)		 I.D. Sealing Type
Rod Dia
(H)		 I.D. Sealing Type
Bore Dia
(I)
  Nom Tol +/- Nom Tol +/- +.000 / -.002 +.000 / -.001 +.002 / -.000 +.002 / -.000 +.000 / -.002 +.001 / -.000
-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 0.500 0.490 0.248 0.251
-203 0.139 0.004 0.296 0.005 0.320 0.559 0.562 0.552 0.310 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 0.750 0.740 0.498 0.501
-207 0.139 0.004 0.546 0.007 0.570 0.809 0.812 0.802 0.560 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 0.010 0.758 0.997 1.000 0.990 0.748 0.751
-211 0.139 0.004 0.796 0.010 0.820 1.059 1.062 1.052 0.810 0.813
-212 0.139 0.004 0.859 0.010 0.883 1.122 1.125 1.115 0.873 0.876
-213 0.139 0.004 0.921 0.010 0.945 1.184 1.187 1.177 0.935 0.938
-2147 0.139 0.004 0.984 0.010 1.008 1.247 1.250 1.240 0.998 1.001
-215 0.139 0.004 1.046 0.010 1.070 1.309 1.312 1.302 1.060 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 1.500 1.490 1.248 1.251
-219 0.139 0.004 1.296 0.012 1.320 1.559 1.562 1.552 1.310 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 1.750 1.740 1.498 1.501

Dash Size O-Ring
Cross-Section		 O-Ring Diameter O.D. Sealing Type
Gland Dia
(D)		 O.D. Sealing Type
Piston Dia
(E)		 O.D. Sealing Type
Bore Dia
(F)		 I.D. Sealing Type
Gland Dia
(G)		 I.D. Sealing Type
Rod Dia
(H)		 I.D. Sealing Type
Bore Dia
(I)
  Nom Tol +/- Nom Tol +/- +.000 / -.002 +.000 / -.001 +.002 / -.000 +.002 / -.000 +.000 / -.002 +.001 / -.000
-309 0.210 0.005 0.412 0.005 0.442 0.809 0.812 0.805 0.435 0.438
-310 0.210 0.005 0.475 0.005 0.505 0.872 0.875 0.868 0.498 0.501
-311 0.210 0.005 0.537 0.007 0.567 0.934 0.937 0.930 0.560 0.563
-312 0.210 0.005 0.600 0.009 0.630 0.997 1.000 0.993 0.623 0.626
-313 0.210 0.005 0.662 0.009 0.692 1.059 1.062 1.055 0.685 0.688
-314 0.210 0.005 0.725 0.010 0.755 1.122 1.125 1.118 0.748 0.751
-315 0.210 0.005 0.787 0.010 0.817 1.184 1.187 1.180 0.810 0.813
-316 0.210 0.005 0.850 0.010 0.880 1.247 1.250 1.243 0.873 0.876
-317 0.210 0.005 0.912 0.010 0.942 1.309 1.312 1.305 0.935 0.938
-318 0.210 0.005 0.975 0.010 1.005 1.372 1.375 1.368 0.998 1.001
-319 0.210 0.005 1.037 0.010 1.067 1.434 1.437 1.430 1.060 1.063
-320 0.210 0.005 1.100 0.012 1.130 1.497 1.500 1.493 1.123 1.126
-321 0.210 0.005 1.162 0.012 1.192 1.559 1.562 1.555 1.185 1.188
-322 0.210 0.005 1.225 0.012 1.255 1.622 1.625 1.618 1.248 1.251
-323 0.210 0.005 1.287 0.012 1.317 1.684 1.687 1.680 1.310 1.313
-324 0.210 0.005 1.350 0.012 1.380 1.747 1.750 1.743 1.373 1.376
-325 0.210 0.005 1.475 0.015 1.505 1.872 1.875 1.868 1.498 1.501
-326 0.210 0.005 1.600 0.015 1.630 1.997 2.000 1.993 1.623 1.626
-327 0.210 0.005 1.725 0.015 1.755 2.122 2.125 2.118 1.748 1.751
-328 0.210 0.005 1.850 0.015 1.880 2.247 2.250 2.243 1.873 1.876
-329 0.210 0.005 1.975 0.018 2.005 2.372 2.375 2.368 1.998 2.001
-330 0.210 0.005 2.100 0.018 2.130 2.497 2.500 2.493 2.123 2.126
-331 0.210 0.005 2.225 0.018 2.255 2.622 2.625 2.618 2.248 2.251
-332 0.210 0.005 2.350 0.018 2.380 2.747 2.750 2.743 2.373 2.376
-333 0.210 0.005 2.475 0.020 2.505 2.872 2.875 2.868 2.498 2.501
-334 0.210 0.005 2.600 0.020 2.630 2.997 3.000 2.993 2.623 2.626
-335 0.210 0.005 2.725 0.020 2.755 3.122 3.125 3.118 2.748 2.751
-336 0.210 0.005 2.850 0.020 2.880 3.247 3.250 3.243 2.873 2.876
-337 0.210 0.005 2.975 0.024 3.005 3.372 3.375 3.368 2.998 3.001
-338 0.210 0.005 3.100 0.024 3.130 3.497 3.500 3.493 3.123 3.126
-339 0.210 0.005 3.225 0.024 3.255 3.622 3.625 3.618 3.248 3.251
-340 0.210 0.005 3.350 0.024 3.380 3.747 3.750 3.743 3.373 3.376
-341 0.210 0.005 3.475 0.024 3.505 3.872 3.875 3.868 3.498 3.501
-342 0.210 0.005 3.600 0.028 3.630 3.997 4.000 3.993 3.623 3.626
-343 0.210 0.005 3.725 0.028 3.755 4.122 4.125 4.118 3.748 3.751
-344 0.210 0.005 3.850 0.028 3.880 4.247 4.250 4.243 3.873 3.876
-345 0.210 0.005 3.975 0.028 4.005 4.372 4.375 4.368 3.998 4.001
-346 0.210 0.005 4.100 0.028 4.130 4.497 4.500 4.493 4.123 4.126
-347 0.210 0.005 4.225 0.030 4.255 4.622 4.625 4.618 4.248 4.251
-348 0.210 0.005 4.350 0.030 4.380 4.747 4.750 4.743 4.373 4.376
-349 0.210 0.005 4.475 0.030 4.505 4.872 4.875 4.868 4.498 4.501

Dash Size O-Ring
Cross-Section		 O-Ring Diameter O.D. Sealing Type
Gland Dia
(D)		 O.D. Sealing Type
Piston Dia
(E)		 O.D. Sealing Type
Bore Dia
(F)		 I.D. Sealing Type
Gland Dia|
(G)		 I.D. Sealing Type
Rod Dia
(H)		 I.D. Sealing Type
Bore Dia
(I)
  Nom Tol +/- Nom Tol +/- +.000 / -.002 +.000 / -.001 +.002 / -.000 +.002 / -.000 +.000 / -.002 +.001 / -.000
-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 4.600 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 4.850 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 5.100 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 5.350 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 5.600 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 5.850 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 0.040 6.278 6.748 6.752 6.721 6.247 6.251
-439 0.275 0.006 6.475 0.040 6.528 6.998 7.002 6.971 6.497 6.501
-440 0.275 0.006 6.725 0.040 6.778 7.248 7.252 7.221 6.747 6.751
-441 0.275 0.006 6.975 0.040 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 0.060 10.528 10.998 11.002 10.971 10.497 10.501
-451 0.275 0.006 10.975 0.060 11.028 11.498 11.502 11.471 10.997 11.001
-452 0.275 0.006 11.475 0.060 11.528 11.998 12.002 11.971 11.497 11.501
-453 0.275 0.006 11.975 0.060 12.028 12.498 12.502 12.471 11.997 12.001
-454 0.275 0.006 12.475 0.060 12.528 12.998 13.002 12.971 12.497 12.501
-455 0.275 0.006 12.975 0.060 13.028 13.498 13.502 13.471 12.997 13.001
-456 0.275 0.006 13.475 0.070 13.528 13.998 14.002 13.971 13.497 13.501
-457 0.275 0.006 13.975 0.070 14.028 14.498 14.502 14.471 13.997 14.001
-458 0.275 0.006 14.475 0.070 14.528 14.998 15.002 14.971 14.497 14.501
-459 0.275 0.006 14.975 0.070 15.028 15.498 15.502 15.471 14.997 15.001
-460 0.275 0.006 15.475 0.070 15.528 15.998 16.002 15.971 15.497 15.501