SealSpec / O-rings / Size chart / AS568-337

AS568-337 O-ring · 3 ID × 3/16 cross-section

Standard AS568 size -337: 2.975 in inside diameter × 0.210 in cross-section (75.57 × 5.33 mm). Dimensions, tolerances, groove check and material options for specifying this size in a production design.

AS568-337 O-ring dimensioned drawing, 2.975 inch ID by 0.210 inch cross-section, outside diameter 3.395 inch — Dimensioned drawing, proportional to ID/CSDownload SVG

Dimensions (inch)

Dash number	AS568-337
Inside diameter	2.975 ± 0.024
Cross-section	0.210 ± 0.005
Outside diameter (calculated)	3.395
Nominal	3 × 3 3/8 × 3/16

Dimensions (mm)

Inside diameter	75.57 ± 0.61
Cross-section	5.33 ± 0.13
Outside diameter (calc.)	86.23

Material options for -337

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

Check your groove for -337

Enter your gland dimensions. Results are nominal geometry.

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

Open the full groove calculator →

Same cross-section (0.210 in)

-333 2.475 -334 2.600 -335 2.725 -336 2.850 -337 2.975 -338 3.100 -339 3.225 -340 3.350 -341 3.475

← AS568-336 · AS568-338 → · Full size chart