SealSpec / O-rings / Size chart / AS568-429

AS568-429 O-ring · 5 ID × 1/4 cross-section

Standard AS568 size -429: 4.975 in inside diameter × 0.275 in cross-section (126.37 × 6.99 mm). Dimensions, tolerances, groove check and material options for specifying this size in a production design.

AS568-429 O-ring dimensioned drawing, 4.975 inch ID by 0.275 inch cross-section, outside diameter 5.525 inch — Dimensioned drawing, proportional to ID/CSDownload SVG

Dimensions (inch)

Dash number	AS568-429
Inside diameter	4.975 ± 0.037
Cross-section	0.275 ± 0.006
Outside diameter (calculated)	5.525
Nominal	5 × 5 1/2 × 1/4

Dimensions (mm)

Inside diameter	126.37 ± 0.94
Cross-section	6.99 ± 0.15
Outside diameter (calc.)	140.33

Material options for -429

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

Check your groove for -429

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

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Same cross-section (0.275 in)

-425 4.475 -426 4.600 -427 4.725 -428 4.850 -429 4.975 -430 5.100 -431 5.225 -432 5.350 -433 5.475

← AS568-428 · AS568-430 → · Full size chart