Static O-Ring Design Chart

Explore data for static o-rings for rods, pistons, and cylinders.

O-ring Groove Dimension Guide
*Recommended surface finish: Ra 16 max. for gases and Ra 32 max. for fluids

Static O-Ring Gland Width and Depth and Diameter Default Recomendations

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

Static Seal O-Ring Gland Diameter Default Recomendations

Dash SizeO-Ring Cross SectionO-Ring DiameterInt. Vacuum Gland I.D. (D)Int. Pressure Gland O.D. (E)
NomTol +/-NomTol +/-DiaTol(+)Tol (-)+.002/-.000DiaTol(+)Tol (-)+.002/-.000
-0050.070.0030.1010.0050.13700.0020.2370.21200.0020.112
-0060.070.0030.1140.0050.1500.0020.250.22500.0020.125
-0070.070.0030.1450.0050.18100.0020.2810.25600.0020.156
-0060.070.0030.1140.0050.1500.0020.250.22500.0020.125
-0070.070.0030.1450.0050.18100.0020.2810.25600.0020.156
-0080.070.0030.1760.0050.21200.0020.3120.28700.0020.187
-0090.070.0030.2080.0050.24300.0020.3430.31800.0020.218
-0100.070.0030.2390.0050.27500.0020.3750.3500.0020.25
-0110.070.0030.3010.0050.33700.0020.4370.41200.0020.312
-0120.070.0030.3640.0050.400.0020.50.47500.0020.375

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