SealSpec / O-rings / Size chart / AS568-021

AS568-021 O-ring · 15/16 ID × 1/16 cross-section

Standard AS568 size -021: 0.926 in inside diameter × 0.070 in cross-section (23.52 × 1.78 mm). Dimensions, tolerances, groove check and material options for specifying this size in a production design.

AS568-021 O-ring dimensioned drawing, 0.926 inch ID by 0.070 inch cross-section, outside diameter 1.066 inch — Dimensioned drawing, proportional to ID/CSDownload SVG

Dimensions (inch)

Dash number	AS568-021
Inside diameter	0.926 ± 0.009
Cross-section	0.070 ± 0.003
Outside diameter (calculated)	1.066
Nominal	15/16 × 1 1/16 × 1/16

Dimensions (mm)

Inside diameter	23.52 ± 0.23
Cross-section	1.78 ± 0.08
Outside diameter (calc.)	27.08

Material options for -021

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

Check your groove for -021

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 (0.070 in)

-017 0.676 -018 0.739 -019 0.801 -020 0.864 -021 0.926 -022 0.989 -023 1.051 -024 1.114 -025 1.176

← AS568-020 · AS568-022 → · Full size chart