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RUBRINGS / TECHNICAL LIBRARY

O-ring resources & technical guides

Find O-ring size references, rubber properties and material-selection guidance for a clearer engineering or procurement enquiry.

Size standards, clearly identified.

Japan / P and G series

JIS B 2401

Include the series prefix. P and G designations identify different size series.

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International

ISO 3601-1

Specify the applicable dimensional class and revision; nominal size alone does not define every tolerance.

View shared nominal sizes ↗
Germany / legacy references

DIN 3771

For a legacy DIN drawing, confirm dimensions and the applicable DIN ISO 3601 requirements before substitution.

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UK / BS designation

British size references

Record the exact BS reference and dimensions. For a BS 1516 enquiry, include the original chart or drawing for verification. BS 1806 and BS 4518 references should not be substituted by name alone.

Open engineering reference ↗

External handbooks are engineering references, not Rubrings catalogues or proof of affiliation. Confirm the current standard and drawing revision for production.

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