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SAE AIR6082 - Calculations to Determine Dimensions for Backup Rings to AS5781, AS5782, AS5860, AS5861
June 1, 2016 - SAE

This AIR documents the methodologies used to calculate the dimensions and tolerances used in the following backup rings standards: AS5781 AS5782 AS5860 AS5861 In addition, an appendix is provided which provides details of gland and backup ring design practices.

SAE AS5782 - Retainers (Backup Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Solid, Un-Cut, For Use in AS4716 Glands
April 1, 2015 - SAE

This SAE Aerospace Standard (AS) covers solid, uncut polytetrafluoroethylene (PTFE) retainers (backup rings) for use in glands in accordance with AS4716. They are for use in hydraulic and pneumatic system components as anti-extrusion devices in conjunction with O-rings,...

SAE AMS3678/9 - Type 9 Virgin Polytetrafluoroethylene (PTFE) Moldings with Pigment for AS4716 and AS5857 Backup Rings
February 1, 2016 - SAE

Form This specification covers a polytetrafluoroethylene (PTFE) resin filled with inorganic pigment in the form of molded rods or tubes which are sintered after molding. The blue colored material is designated for use in rod glands only and the yellow colored material is designated for use in...

SAE AS5781 - Retainers (Backup Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Single Turn, Scarf-Cut, For Use in AS4716 Glands
April 1, 2015 - SAE

This SAE Aerospace Standard (AS) covers scarf-cut polytetrafluoroethylene (PTFE) retainers (backup rings) for use in glands in accordance with AS4716. They are for use in hydraulic and pneumatic system components as anti-extrusion devices in conjunction with O-rings, packings...

SAE ARP1802 - (R) Selection and Application of Polytetrafluoroethylene (PTFE and TFE) Backup Rings for Hydraulic and Pneumatic Fluid Power Applications
December 1, 2014 - SAE

This SAE Aerospace Recommended Practice (ARP) provides an overview of the various types of polytetrafluoroethylene (PTFE and TFE) back up rings for hydraulic and pneumatic fluid power applications, including their advantages and disadvantages. Purpose To help the user selecting the right...

SAE AIR1186 - Installation and Use of Equilateral Triangle Cross-Section Hydraulic O-Ring Seal Backup Rings (Dyna-Baks)
December 1, 2011 - SAE

INTRODUCTION: 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...

SAE AS4716 - (R) Gland Design, O-ring and Other Seals
December 1, 2017 - SAE

This SAE Aerospace Standard (AS) provides standardized gland (groove) design criteria and dimensions for O-ring seal glands for static and dynamic applications, and other seals. Field of Application The glands have been specifically designed for applications using AS568 size O-rings...

MS 27595 - RETAINER, PACKING BACKUP, CONTINUOUS RING, POLYTETRAFLUOROETHYLENE
NPFC
A description is not available for this item.
SAE ARP4912 - (R) Design Recommendations for Spare Seals in Landing Gear Shock Struts
June 1, 2017 - SAE

This SAE Aerospace Recommended Practice (ARP) provides recommendations on cavity design, the installation of elastomer type spare seals in these cavities, and information surrounding elastomer material properties after contact with typical shock absorber hydraulic fluid(s) or grease. This ARP is...

SAE AMS3678/10 - Type 10 Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions with 15% Carbon Fiber
February 1, 2016 - SAE

Form This specification covers a polytetrafluoroethylene (PTFE) resin filled with carbon fiber in the form of extruded or molded rods or tubes which are sintered after molding or, in the case of extrusions, sintered during the extrusion process. Application These products have been used typically...

SAE AMS3678/12 - Type 12 10% Mineral, 2.5% Molybdenum Disulfide Filled Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions
February 1, 2016 - SAE

Form This specification covers a polytetrafluoroethylene (PTFE) resin filled with 10% mineral and 2.5% molybdenum disulfide in the form of extruded or molded rods or tubes which are sintered after molding or, in the case of extrusions, sintered during the extrusion process. Application These...

SAE AMS3678/8 - Type 8 Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions with 10% Carbon Fiber
February 1, 2016 - SAE

Form This specification covers a polytetrafluoroethylene (PTFE) resin filled with carbon fiber in the form of extruded or molded rods or tubes which are sintered after molding or, in the case of extrusions, sintered during the extrusion process. Application These products have been used typically...

SAE AMS3678/5 - Type 5 Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions with Pigment
February 1, 2016 - SAE

Form This specification covers a polytetrafluoroethylene (PTFE) resin filled with inorganic pigment in the form of extruded or molded rods or tubes which are sintered after molding or, in the case of extrusions, sintered during the extrusion process. Application These products have been used...

SAE AMS3678/7 - Type 7 Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions with 25% Carbon and Graphite
February 1, 2016 - SAE

Form This specification covers a polytetrafluoroethylene (PTFE) resin filled with carbon and graphite in the form of extruded or molded rods or tubes which are sintered after molding or, in the case of extrusions, sintered during the extrusion process. Application These products have been used...

SAE AMS3678/1 - Type 1 Virgin Polytetrafluoroethylene (PTFE) Moldings and Extrusions
February 1, 2016 - SAE

Form This specification covers an unfilled grade of virgin polytetrafluoroethylene (PTFE) resin in the form of extruded or molded rods or tubes which are sintered after molding or, in the case of extrusions, sintered during the extrusion process. Application These products have been used typically...

SAE AS6235 - (R) Face Seal Gland Design, Static, O-ring and Other Seals for Aerospace Hydraulic and Pneumatic Applications
December 1, 2015 - SAE

This SAE Aerospace Standard (AS) specifies standardized gland design criteria and dimensions for static face seals for internal pressure and external pressure applications for aerospace hydraulic and pneumatic applications using the same size range as AS4716 and AS5857 where applicable. Some small...

SAE AS8791 - Hydraulic and Pneumatic Retainers (Back-Up Rings), Polytetrafluoroethylene (PTFE) Resin
October 1, 2014 - SAE

This specification and part standard covers polytetrafluoroethylene (PTFE) resin material and the dimensional requirements for scarf-cut retainers (back-up rings) previously covered by MIL-R-8791 and MIL-R-8791/1. The retainers are intended for use in hydraulic and pneumatic system...

ASTM D4024 - Standard Specification for Machine Made “Fiberglass” (Glass-Fiber-Reinforced Thermosetting Resin) Flanges
May 1, 2015 - ASTM

This specification covers reinforced-thermosetting resin flanges other than contact-molded flanges. Included are requirements for materials, workmanship, performance, and dimensions. Flanges may be produced integrally with a pipe or fitting, may be produced with a socket for adhesive bonding to a...

SAE ARP4727 - Gland Design, Computation of Seal Squeeze and Gland Volume
June 1, 2013 - SAE

This SAE Aerospace Recommended Practice (ARP) presents two BASIC language computer programs to promote and standardize the computation of installed O-ring cross-section deflection hereafter referred to as "squeeze" and the computation of gland volume. The two programs were written with line...

SAE AS5857 - Gland Design, O-ring and Other Elastomeric Seals, Static Applications
November 1, 2010 - SAE

This SAE Aerospace Standard (AS) provides standardized gland (groove) design criteria and dimensions for elastomeric seal glands for static applications. The glands have been specifically designed for applications using SAE AS568 size Orings at pressures exceeding 1500 psi (10.3 MPa) utilizing one...

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