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SAE AIR 1186
- Installation and Use of Equilateral Triangle Cross-Section Hydraulic O-Ring Seal Backup Rings (Dyno-Baks) ( Reaffirmed: Oct 1990 May 1994 Jul 2008 )
- standard by SAE International, 06/01/1979
- Publisher: SAE
$37.00$74.00
The use of equilateral triangle cross-section hydraulic seal backup rings has been found to improve the life and reliability of high pressure O-ring seals especially for high temperature applications. This Aerospace Information Report (AIR) describes the design and operation of these backup rings, tabulates recommended seal groove and gland dimensions, offers recommendations and suggestions for their installation into hydraulic components, and outlines their advantages and limitations of their use.
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