SealSpec / O-rings / Size chart / AS568-313

AS568-313 O-ring · 11/16 ID × 3/16 cross-section

Standard AS568 size -313: 0.662 in inside diameter × 0.210 in cross-section (16.81 × 5.33 mm). Dimensions, tolerances, groove check and material options for specifying this size in a production design.

AS568-313 O-ring dimensioned drawing, 0.662 inch ID by 0.210 inch cross-section, outside diameter 1.082 inch — Dimensioned drawing, proportional to ID/CSDownload SVG

Dimensions (inch)

Dash number	AS568-313
Inside diameter	0.662 ± 0.009
Cross-section	0.210 ± 0.005
Outside diameter (calculated)	1.082
Nominal	11/16 × 1 1/16 × 3/16

Dimensions (mm)

Inside diameter	16.81 ± 0.23
Cross-section	5.33 ± 0.13
Outside diameter (calc.)	27.48

Material options for -313

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

Check your groove for -313

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 (0.210 in)

-309 0.412 -310 0.475 -311 0.537 -312 0.600 -313 0.662 -314 0.725 -315 0.787 -316 0.850 -317 0.912

← AS568-312 · AS568-314 → · Full size chart