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Standard

Selection and Application of Polytetrafluoroethylene (PTFE) Backup Rings for Hydraulic and Pneumatic Fluid Power Applications

2020-01-30

WIP

ARP1802C

This SAE Aerospace Recommended Practice (ARP) provides an overview of the various types of polytetrafluoroethylene (PTFE) backup rings for hydraulic and pneumatic fluid power applications, including their advantages and disadvantages.

Standard

Selection and Application of Polytetrafluoroethylene (PTFE and TFE) Backup Rings for Hydraulic and Pneumatic Fluid Power Applications

2014-12-29

CURRENT

ARP1802B

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.

Standard

Sealing Techniques for Missile Applications

2008-07-16

HISTORICAL

ARP1833A

The purpose of this standard is to provide the missile hydraulic and pneumatic component designer with information learned, tested and substantiated in correction of problems and failures experienced with seals that are subject to the unique requirements of missile static storage and subsequent dynamic operational conditions. Missile hydraulic and pneumatic component designers have been handicapped by the absence of concise design criteria for two difficult sealing conditions usually existing in missile applications as follows: Static pressure condition - Low pressure for long periods in a cyclic temperature environment (i.e., long term storage requirements). Dynamic pressure condition - High pressures suddenly applied in an extreme temperature environment (i.e., operational firing requirement).

Standard

SELECTION AND APPLICATION OF POLYTETRAFLUOROETHYLENE (PTFE OR TFE) BACKUP RINGS FOR HYDRAULIC AND PNEUMATIC FLUID POWER APPLICATIONS

1992-01-09

HISTORICAL

ARP1802A

The backup ring is defined. The various types designed for use with O-rings in MIL-G-5514 packing glands, and MS33566 and MS21344 universal fitting installations are described. Guidelines are included for selecting backup rings and backup ring materials. Backup ring installation procedures and precautions are described.

Standard

SELECTION AND APPLICATION OF POLYTETRAFLUOROETHYLENE (PTFE OR TFE) BACKUP RINGS FOR HYDRAULIC AND PNEUMATIC FLUID POWER APPLICATIONS

1983-02-01

HISTORICAL

ARP1802

The backup ring is defined. The various types designed for use with O-rings in MIL-G-5514 packing glands, and MS 33566 and MS 21344 universal fitting installations, are described.

Standard

SEAL, PLAIN, RUBBER (HOT AIR RESISTANT 400 °F) MOLD IN GROOVE

2008-02-19

HISTORICAL

AS27197A

Standard

SEAL, PLAIN, RUBBER (-65 TO +350 °F FUEL RESISTANT) MOLD IN GROOVE

2008-02-19

HISTORICAL

AS27198A

Standard

SEAL, BONDED, ALUMINUM ALLOY 6061-T6, AMS4027, MOLD IN GROOVE, NBR RUBBER, AMS-R-7362

2014-04-29

HISTORICAL

AS27195A

Standard

SEAL, BONDED, ALUMINUM ALLOY 6061-T6, AMS4027, MOLD IN GROOVE, NBR RUBBER, AMS-P-5315

2014-01-09

HISTORICAL

AS27194A

Standard

SEAL, BONDED, ALUMINUM ALLOY 6061-T6, AMS4027, MOLD IN GROOVE, NBR RUBBER, AMS-P-5315

2014-04-08

HISTORICAL

AS27194B

Standard

SEAL, BONDED, ALUMINUM ALLOY 6061-T6, AMS4027, MOLD IN GROOVE, NBR RUBBER, AMS-P-5315

2018-11-26

CURRENT

AS27194C

Standard

SEAL, BONDED, ALUMINIM ALLOY 6061-T6, AMS4027, MOLD IN GROOVE, NBR RUBBER, AMS-R-7362

2019-09-03

CURRENT

AS27195B

Standard

SEAL, BONDED, 302 CORROSION RESISTANT STEEL, AMS5516, MOLD IN GROVE, FLUOROCARBON RUBBER, AMS7276

2019-09-03

CURRENT

AS27196C

Standard

SEAL, BONDED, 302 CORROSION RESISTANT STEEL, AMS5516, MOLD IN GROOVE, SILICONE RUBBER, AMS7268

2019-09-03

CURRENT

AS27197C

Standard

SEAL, BONDED, 302 CORROSION RESISTANT STEEL, AMS5516, MOLD IN GROOVE, SILICONE RUBBER, AMS7268

2014-07-07

HISTORICAL

AS27197B

Standard

SEAL, BONDED, 302 CORROSION RESISTANT STEEL, AMS5516, MOLD IN GROOVE, FLUOROSILICONE RUBBER, MIL-DTL-25988

2019-09-03

CURRENT

AS27198C

Standard

SEAL, BONDED, 302 CORROSION RESISTANT STEEL, AMS5516, MOLD IN GROOVE, FLUOROSILICONE RUBBER, MIL-DTL-25988

2014-06-13

HISTORICAL

AS27198B

Standard

SEAL, BONDED, 302 CORROSION RESISTANT STEEL, AMS5516, MOLD IN GROOVE, FLUOROCARBON RUBBER, AMS7276

2014-06-13

HISTORICAL

AS27196B

Standard

Retainers, (Backup Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Solid, Un-Cut, for Use in Static Glands to AS5857

2023-07-03

CURRENT

AS5861C

This SAE Aerospace Standard (AS) specifies solid polytetrafluoroethylene (PTFE) retainers (backup rings) for use in static glands in accordance with AS5857. They are usually for use in hydraulic and pneumatic systems as anti-extrusion devices in conjunction with O-rings and other seals.

Standard

Retainers, (Back-Up Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Solid, Static Gland

2005-12-14

HISTORICAL

AS5861

This SAE Aerospace Standard (AS) covers solid polytetrafluoroethylene (PTFE) retainers (back-up rings) for use in static glands in accordance with AS5857. They are for use in hydraulic and pneumatic system components as anti-extrusion devices in conjunction with O-rings, packings and other elastomeric seals. Because of the construction of groove dimensions, back-ups specific to rod applications are designated “R” - Rod (Female), back-ups specific to piston applications are designated “P” - Piston (Male). Retainers specified herein have been designed for a temperature range of -65 to 275 °F (-54 to 135 °C) and a nominal operating pressure of 3000 psi (20.6 MPa) for code 09 material and 5000 psi (34.3 MPa) for code 10 material. Material codes are based on AMS 3678 material types.