SealSpec
Build a spec
SealSpec / O-rings / Size chart / AS568-343

AS568-343 O-ring · 3 3/4 ID × 3/16 cross-section

Standard AS568 size -343: 3.725 in inside diameter × 0.210 in cross-section (94.62 × 5.33 mm). Dimensions, tolerances, groove check and material options for specifying this size in a production design.

AS568-343 O-ring dimensioned drawing, 3.725 inch ID by 0.210 inch cross-section, outside diameter 4.145 inch
Dimensioned drawing, proportional to ID/CSDownload SVG

Dimensions (inch)

Dash numberAS568-343
Inside diameter3.725 ± 0.028
Cross-section0.210 ± 0.005
Outside diameter (calculated)4.145
Nominal3 3/4 × 4 1/8 × 3/16

Dimensions (mm)

Inside diameter94.62 ± 0.71
Cross-section5.33 ± 0.13
Outside diameter (calc.)105.28

Material options for -343

Check your groove for -343

Enter your gland dimensions. Results are nominal geometry.

Open the full groove calculator →

Same cross-section (0.210 in)

← AS568-342 · AS568-344 → · Full size chart