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Standard

AEROSPACE STANDARD, GLAND DESIGN, O-RING AND OTHER ELASTOMERIC SEALS

1993-06-11

HISTORICAL

AS4716

This SAE Aerospace Standard provides standardized gland (groove) design criteria and dimensions for elastomeric seal glands for static and dynamic applications. The glands have been specifically designed for applications using SAE AS568 size O-rings at pressures exceeding 1500 psi utilizing one or two anti-extrusion (backup) rings and applications at pressures under 1500 psi without backup rings. The glands have been sized to provide sufficient squeeze for effective sealing while at the same time limiting squeeze to allow satisfactory operation in dynamic applications. While specifically designed for standard size O-rings, these glands are also to be used with other elastomeric seals.

Standard

Aerospace Size Standard for O-Rings

2001-03-01

HISTORICAL

AS568B

This Aerospace Standard specifies the inside diameters, cross-sections, tolerances, and size identification codes (dash numbers) for O-rings used in sealing applications and for straight thread tube fitting boss gaskets. The dimensions and tolerances specified in this standard are suitable for any elastomeric material provided that suitable tooling is available.

Standard

Aerospace Size Standard for O-Rings

2020-09-29

CURRENT

AS568F

This SAE Aerospace Standard (AS) specifies the inside diameters, cross-sections, tolerances, and size identification codes (dash numbers) for O-rings used in sealing applications and for straight thread tube fitting boss gaskets. The dimensions and tolerances specified in this standard are suitable for any elastomeric material provided that suitable tooling is available.

Standard

Aerospace Size Standard for O-rings

2008-12-03

HISTORICAL

AS568C

This Aerospace Standard specifies the inside diameters, cross-sections, tolerances, and size identification codes (dash numbers) for O-rings used in sealing applications and for straight thread tube fitting boss gaskets. The dimensions and tolerances specified in this standard are suitable for any elastomeric material provided that suitable tooling is available.

Standard

Aerospace Size Standard for O-rings

2014-03-11

HISTORICAL

AS568D

This SAE Aerospace Standard (AS) specifies the inside diameters, cross-sections, tolerances, and size identification codes (dash numbers) for O-rings used in sealing applications and for straight thread tube fitting boss gaskets. The dimensions and tolerances specified in this standard are suitable for any elastomeric material provided that suitable tooling is available.

Standard

Aerospace, Slipper Seals, Selection for Fluid Power Applications

2022-08-05

CURRENT

AIR1244B

This SAE Aerospace Information Report (AIR) provides basic information on the use of slipper seal sealing devices when used as piston (OD) and rod (ID) seals in aerospace fluid power components such as actuators, valves, and swivel joints, including: The definition of a slipper seal and the description of the basic types in use. Guidelines for selecting the type of slipper seal for a given design requirement are provided in terms of friction, leakage, service life, installation characteristics, and interchangeability.

Standard

Elastomer Compatibility Considerations Relative to Elastomer Selection

2021-10-01

CURRENT

AIR786C

This SAE Aerospace Information Report (AIR) contains data relative to the chemical nature of aerospace fluids and relates each to its empirical effect upon elastomeric components. Since the compatibilities of elastomers are determined by the compounding as well as the nature of the base polymer, the elastomers considered are limited to finished compounds for which material or performance specifications can be referenced.

Standard

GASKET, METALLIC, ENCASED, ANNULAR, COPPER

2021-12-13

CURRENT

AS35769C

THIS STANDARD ESTABLISHES THE DIMENSIONAL AND VISUAL QUALITY REQUIREMENTS, LOT REQUIREMENTS, AND PACKAGING AND LABELLING REQUIREMENTS FOR METALLIC-ENCASED COPPER GASKETS MANUFACTURED PER AMS-HH-G-101 TYPE III - STYLE J. IT SHALL BE USED FOR PROCUREMENT PURPOSES.

Standard

GASKET, METALLIC, ENCASED, ANNULAR, COPPER

2001-03-01

HISTORICAL

AS35769

Standard

Gland Design, O-Ring and Other Seals

2021-11-09

CURRENT

AS4716D

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.

Standard

Gland Design, O-ring and Other Elastomeric Seals

2005-07-21

HISTORICAL

AS4716A

This SAE Aerospace Standard (AS) provides standardized gland (groove) design criteria and dimensions for elastomeric seal glands for static and dynamic applications. The glands have been specifically designed for applications using SAE AS568 size O-rings, with related class 2 tolerances, at pressures exceeding 1500 psi (10,342 kPa) utilizing one or two anti-extrusion (backup) rings and applications at pressures under 1500 psi (10,342 kPa) without backup rings. The glands have been sized to provide sufficient squeeze for effective sealing while at the same time limiting squeeze to allow satisfactory operation in dynamic applications. While this specification covers the basic design criteria and recommendations for use with standard size O-rings, these glands are also suitable for use with other elastomeric, and polytetrafluoroethylene (PTFE) based seals and packings.

Standard

Gland Design, O-ring and Other Elastomeric Seals

2011-03-14

HISTORICAL

AS4716B

This SAE Aerospace Standard (AS) provides standardized gland (groove) design criteria and dimensions for elastomeric seal glands for static and dynamic applications. The glands have been specifically designed for applications using SAE AS568 size O-rings, with related class 2 tolerances, at pressures exceeding 1500 psi (10.34 MPa) utilizing one or two anti-extrusion (backup) rings and applications at pressures below 1500 psi (10.34 MPa) without backup rings. The glands have been sized to provide sufficient squeeze for effective sealing while at the same time limiting squeeze to allow satisfactory operation in dynamic applications. While this specification covers the basic design criteria and recommendations for use with standard size O-rings, these glands are also suitable for use with other elastomeric, and polytetrafluoroethylene (PTFE) based seals.

Standard

Gland Design, O-ring and Other Seals

2017-12-12

HISTORICAL

AS4716C

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.

Standard

Hydraulic and Pneumatic Retainers (Back-Up Rings), Polytetrafluoroethylene (PTFE) Resin

2014-10-27

HISTORICAL

AS8791C

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 components as anti-extrusion devices in conjunction with seals and O-rings.

Standard

Hydraulic and Pneumatic Retainers (Back-Up Rings), Polytetrafluoroethylene (PTFE) Resin

2009-03-13

HISTORICAL

AS8791B

This specification and part standard covers polytetrafluoroethylene (PTFE) resin material and the dimensional requirements for 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 components as anti-extrusion devices in conjunction with packings and O-rings.

Standard

Manufacturing and Inspection Standards for Preformed Packings (O-Rings)

2019-10-17

CURRENT

AS871B

This specification controls surface condition, manufacturing defects and inspection requirements, and defines methods of measurement for elastomeric toroidal sealing rings (O-rings) for static (including gasket) applications.

Standard

O-RING MOLDED FROM AMS-R-7362 NITRILE RUBBER MATERIAL

2021-09-15

CURRENT

AS29561C

THIS STANDARD ESTABLISHES THE DIMENSIONAL AND VISUAL QUALITY REQUIREMENTS, LOT REQUIREMENTS AND PACKAGING AND LABELING REQUIREMENTS FOR O-RINGS MOLDED FROM AMS-R-7362 NITRILE RUBBER. IT SHALL BE USED FOR PROCUREMENT PURPOSES.

Standard

O-Ring Machined from AMS3617 Material

2020-01-13

CURRENT

AS9772A

This standard establishes the dimensional and visual quality requirements, lot requirements, and packaging and labeling requirements for O-rings machined from AMS3617 polyamide material. It shall be used for procurement purposes.

Standard

O-Ring Machined from AMS3650 Material

2020-01-03

CURRENT

AS9770A

This standard establishes the dimensional and visual quality requirements, lot requirements, and packaging and labeling requirements for O-rings machined from AMS3650 material. It shall be used for procurement purposes.

Standard

O-Ring Machined from AMS3668 Material

2020-06-08

CURRENT

AS9955B

This standard establishes the dimensional and visual quality requirements, lot requirements, and packaging and labeling requirements for O-rings machined from AMS3668 material. It shall be used for procurement purposes.