SealSpec / O-rings / Size chart / AS568-330

AS568-330 O-ring · 2 1/8 ID × 3/16 cross-section

Standard AS568 size -330: 2.100 in inside diameter × 0.210 in cross-section (53.34 × 5.33 mm). Dimensions, tolerances, groove check and material options for specifying this size in a production design.

AS568-330 O-ring dimensioned drawing, 2.100 inch ID by 0.210 inch cross-section, outside diameter 2.520 inch — Dimensioned drawing, proportional to ID/CSDownload SVG

Dimensions (inch)

Dash number	AS568-330
Inside diameter	2.100 ± 0.018
Cross-section	0.210 ± 0.005
Outside diameter (calculated)	2.520
Nominal	2 1/8 × 2 1/2 × 3/16

Dimensions (mm)

Inside diameter	53.34 ± 0.46
Cross-section	5.33 ± 0.13
Outside diameter (calc.)	64.01

Material options for -330

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

Check your groove for -330

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)

-326 1.600 -327 1.725 -328 1.850 -329 1.975 -330 2.100 -331 2.225 -332 2.350 -333 2.475 -334 2.600

← AS568-329 · AS568-331 → · Full size chart