Historical

SAE AS8791D

Name: SAE AS8791D PDF | Request Standard
SKU: 254f1a3eaf6f

Hydraulic and Pneumatic Retainers (Backup Rings), Polytetrafluoroethylene (PTFE) Resin

Standard by SAE International, 2020-01-03

Available Formats:

SAE AS8791D.PDFSecure PDF
SAE AS8791D.PDFOnline Access

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Language: English
License Type: Single User
Updates: Not Included

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Language: English
License Type: Enterprise / Multi User
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About This Item

This specification and part standard specifies polytetrafluoroethylene (PTFE) resin material and the dimensional requirements for scarf-cut retainers (backup rings) previously specified by MIL-R-8791 and MIL-R-8791/1. The retainers are intended for use in hydraulic and pneumatic system components as anti-extrusion devices in conjunction with seals and O-rings. This document has been revised to: Clarify the use of these parts in glands other than MIL-G-5514 Update the references Add the requirement that no resizing of parts during the manufacturing process is permitted Delete the dimensional stability test requirement (since this test is performed on each lot of molded material as required by AMS3678) Include some editorial improvements

SKU: 254f1a3eaf6f

Publication Date: 2020-01-03

Standard Status: latest

Publisher: SAE International

Document Type: Aerospace Standard

Subject: Fittings, Manufacturing processes, Hazardous materials, , , , , ,

Official SAE: Doi link

New Version Available: AS8791D (2025-07-16)
This Version: AS8791D (2020-01-03)
Previous Version: AS8791C (2014-10-27)
Previous Version: AS8791B (2009-03-13)
Previous Version: AS8791A (2003-06-24)
Previous Version: AS8791 (1997-10-01)

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