This specification and part standard covers polytetrafluoroethylene (PTFE) resin material and the dimensional requirements for retainers (back-up rings) previously covered by SAE AS 8791 and SAE AS 8791/1 which superseded MIL-R-8791 and MIL-R-8791/1.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 conjunctionwith packings and O-rings.
SAE AS8791B-2009 Referenced Document
SAE AMS3678-1999 Polytetrafluoroethylene (PTFE) Moldings and Extrusions Unfilled, Pigmented, and Filled Components
SAE AS4716-1993 Aerospace Standard, Gland Design, O-Ring and Other Elastomeric Seals
SAE AS5781-2007 Retainers (Backup Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Single Turn, Scarf-Cut, For Use in AS4716 Glands