SealSpec / O-rings / Size chart / AS568-108

AS568-108 O-ring · 1/4 ID × 3/32 cross-section

Standard AS568 size -108: 0.237 in inside diameter × 0.103 in cross-section (6.02 × 2.62 mm). Dimensions, tolerances, groove check and material options for specifying this size in a production design.

AS568-108 O-ring dimensioned drawing, 0.237 inch ID by 0.103 inch cross-section, outside diameter 0.443 inch — Dimensioned drawing, proportional to ID/CSDownload SVG

Dimensions (inch)

Dash number	AS568-108
Inside diameter	0.237 ± 0.005
Cross-section	0.103 ± 0.003
Outside diameter (calculated)	0.443
Nominal	1/4 × 7/16 × 3/32

Dimensions (mm)

Inside diameter	6.02 ± 0.13
Cross-section	2.62 ± 0.08
Outside diameter (calc.)	11.25

Material options for -108

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

Check your groove for -108

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 (0.103 in)

-104 0.112 -105 0.143 -106 0.174 -107 0.206 -108 0.237 -109 0.299 -110 0.362 -111 0.424 -112 0.487

← AS568-107 · AS568-109 → · Full size chart