O-Ring Standard (AS568B) Groove Design

Static O-Ring Axial (Face Seal) Glands(download PDF)
Gland Squeeze Groove Width Groove
AS568B CS Depth Inches % Liquids Gases Radius
-004 to
-050		 .070±
.003		 .050 to
.054		 .013 to
.023		 19 to
32		 .101 to
.107		 .084 to
.089		 .005 to
.015
-102 to
-178		 .103±
.003		 .074 to
.080		 .020 to
.032		 20 to
30		 .136 to
.142		 .120 to
.125		 .005 to
.015
-201 to
-284		 .139±
.004		 .101 to
.107		 .028 to
.042		 20 to
30		 .177 to
.187		 .158 to
.164		 .010 to
.025
-309 to
-395		 .210±
.005		 .152 to
.162		 .043 to
.063		 21 to
30		 .270 to
.290		 .239 to
.244		 .020 to
.035
-425 to
-475		 .275±
.006		 .201 to
.211		 .058 to
.080		 21 to
29		 .342 to
.362		 .309 to
.314		 .020 to
.035
Sample snippet 1.
Static O-Ring Radial Glands (download PDF)
Gland Squeeze Groove Width Groove
AS568B CS Depth Inches % DC 0 BR 1 BR 2 BR Radius
-004 to
-050		 .070±
.003		 .050 to
.052		 .015 to
.023		 22 to
32		 .002 to
.005		 .093 to
.098		 .138 to
.143		 .205 to
.210		 .005 to
.015
-102 to
-178		 .103±
.003		 .081 to
.083		 .017 to
.025		 17 to
24		 .002 to
.005		 .140 to
.145		 .171 to
.176		 .238 to
.243		 .005 to
.015
-201 to
-284		 .139±
.004		 .111 to
.113		 .022 to
.032		 16 to
23		 .003 to
.006		 .187 to
.192		 .208 to
.213		 .275 to
.280		 .010 to
.025
-309 to
-395		 .210±
.005		 .170 to
.173		 .032 to
.045		 15 to
21		 .003 to
.006		 .281 to
.286		 .311 to
.316		 .410 to
.415		 .020 to
.035
-425 to
-475		 .275±
.006		 .226 to
.229		 .040 to
.055		 15 to
20		 .004 to
.007		 .375 to
.380		 .408 to
.413		 .538 to
.543		 .020 to
.035
Dynamic O-Ring Reciprocating Glands(download PDF)
Gland Squeeze Groove Width Groove
AS568B CS Depth Inches % DC 0 BR 1 BR 2 BR Radius
-004 to
-050		 .070±
.003		 .055 to
.057		 .010 to
.018		 15 to
25		 .002 to
.005		 .093 to
.098		 .138 to
.143		 .205 to
.210		 .005 to
.015
-102 to
-178		 .103±
.003		 .088 to
.090		 .010 to
.018		 10 to
17		 .002 to
.005		 .140 to
.145		 .171 to
.176		 .238 to
.243		 .005 to
.015
-201 to
-284		 .139±
.004		 .121 to
.123		 .012 to
.022		 9 to
16		 .003 to
.006		 .187 to
.192		 .208 to
.213		 .275 to
.280		 .010 to
.025
-309 to
-395		 .210±
.005		 .185 to
.188		 .017 to
.030		 8 to
14		 .003 to
.006		 .281 to
.286		 .311 to
.316		 .410 to
.415		 .020 to
.035
-425 to
-475		 .275±
.006		 .237 to
.240		 .029 to
.044		 11 to
16		 .004 to
.007		 .375 to
.380		 .408 to
.413		 .538 to
.543		 .020 to
.035

CS Cross Section DC Diametral Clearance BR Backup Rings Measurements in inches.
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