AS8791D Hydraulic and Pneumatic Retainers (Backup Rings), Polytetrafluoroethylene (PTFE) Resin
Revised
01/03/2020
- Features
- Issuing Committee
- Content
- 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.
- Content
- This document has been revised to:
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Clarify the use of these parts in glands other than MIL-G-5514
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Update the references
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Add the requirement that no resizing of parts during the manufacturing process is permitted
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Delete the dimensional stability test requirement (since this test is performed on each lot of molded material as required by AMS3678)
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Include some editorial improvements
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- Pages
- 12
- Citation
- SAE International Technical Standard, Hydraulic and Pneumatic Retainers (Backup Rings), Polytetrafluoroethylene (PTFE) Resin, SAE Standard AS8791D, Revised January 2020, Issued October 1997, https://doi.org/10.4271/AS8791D.