SealSpec / O-rings / Size chart / AS568-208

AS568-208 O-ring · 5/8 ID × 1/8 cross-section

Standard AS568 size -208: 0.609 in inside diameter × 0.139 in cross-section (15.47 × 3.53 mm). Dimensions, tolerances, groove check and material options for specifying this size in a production design.

AS568-208 O-ring dimensioned drawing, 0.609 inch ID by 0.139 inch cross-section, outside diameter 0.887 inch — Dimensioned drawing, proportional to ID/CSDownload SVG

Dimensions (inch)

Dash number	AS568-208
Inside diameter	0.609 ± 0.009
Cross-section	0.139 ± 0.004
Outside diameter (calculated)	0.887
Nominal	5/8 × 7/8 × 1/8

Dimensions (mm)

Inside diameter	15.47 ± 0.23
Cross-section	3.53 ± 0.10
Outside diameter (calc.)	22.53

Material options for -208

Viton / FKM Nitrile / Buna-N EPDM Silicone Fluorosilicone Neoprene

Check your groove for -208

Enter your gland dimensions. Results are nominal geometry.

Groove depth (in)Groove width (in)Installed ID / rod (in)

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Same cross-section (0.139 in)

-204 0.359 -205 0.421 -206 0.484 -207 0.546 -208 0.609 -209 0.671 -210 0.734 -211 0.796 -212 0.859

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