SealSpec / O-rings / Size chart / AS568-378

AS568-378 O-ring · 10 1/2 ID × 3/16 cross-section

Standard AS568 size -378: 10.475 in inside diameter × 0.210 in cross-section (266.07 × 5.33 mm). Dimensions, tolerances, groove check and material options for specifying this size in a production design.

AS568-378 O-ring dimensioned drawing, 10.475 inch ID by 0.210 inch cross-section, outside diameter 10.895 inch — Dimensioned drawing, proportional to ID/CSDownload SVG

Dimensions (inch)

Dash number	AS568-378
Inside diameter	10.475 ± 0.060
Cross-section	0.210 ± 0.005
Outside diameter (calculated)	10.895
Nominal	10 1/2 × 10 7/8 × 3/16

Dimensions (mm)

Inside diameter	266.07 ± 1.52
Cross-section	5.33 ± 0.13
Outside diameter (calc.)	276.73

Material options for -378

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

Check your groove for -378

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

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Same cross-section (0.210 in)

-374 9.225 -375 9.475 -376 9.725 -377 9.975 -378 10.475 -379 10.975 -380 11.475 -381 11.975 -382 12.975

← AS568-377 · AS568-379 → · Full size chart