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Product Description

Standard FKM O ring catalogue including AS 568, JIS B2401, DIN 3771, ISO 3601, GOST 9833-73 and so on

There are also many nonstandard sizes in Jiacheng New Material (SJK) O ring catalogs

What is AS 568 standard?

SAE AS 568 is the Aerospace Size Standard for O-rings from the Society of Automotive Engineers.

What is ISO 3601

The original product and technical standard of O-ring is DIN 3771. The ISO 3601 series standard in 2010 replaced the DIN 3771 series standard, becoming the latest executive standard of O-ring. Subsequently, Global O-rings and seals define the quality acceptance criteria for all O-rings to meet ISO 3601-3 Class N, which classifies surface defects and specifies the maximum acceptable limits for these defects.

What is JIS B 2401

JIS is short of Japanese Industries Standard, B representative Mechanical Engineering. JIS B 2401 is a Japanese Industrial Standard for O-Ring sizes.

There are mainly FOUR series as below.

JIS: P Series – Moving (dynamic)

JIS: G Series – Fixed (static)

JIS: S Series – Special Sizes

JIS: V Series – Vacuum Flange

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