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ISO 16031-1:2002
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Aerospace fluid systems -- O-rings, inch series: Inside diameters and cross sections, tolerances and size-identification codes -- Part 1: Close tolerances for hydraulic systems

This standard was last reviewed* in 2013.

*ISO standards are reviewed every five years.

Abstract

ISO 16031-1 specifies the inside diameters, cross-sections, tolerances and size identification codes for inch O-rings used in aerospace fluid systems.

The dimensions and high precision tolerances specified in ISO 16031-1 are suitable for nitrile and ethylene propylene materials intended for use in high pressure hydraulic fluid systems provided that suitable tooling be available.

 

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