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Standard

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

2020-11-19
CURRENT
AS5861B
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. NOTE: This specification includes material tests but does not include hydraulic or pneumatic performance tests.
Standard

Static Axial O-Ring Seal Applications Without Anti-Extrusion Devices for Engine and Engine Control Systems

2020-11-09
CURRENT
ARP1234C
This document establishes standard gland design criteria and dimensions for static axial O-ring seal applications without anti-extrusion devices specifically for engines and engine control systems operating at a maximum pressure of 1500 psi (10345 kPa). NOTE: The criteria herein are similar, but not identical, to those in AS4716 and the legacy standard MIL-G-5514.
Standard

Aerospace Rod Scraper Gland Design Standard

2020-11-03
CURRENT
AS4088F
This SAE Aerospace Standard (AS) defines gland details for scrapers for rod diameters from 1/4 to 15-1/2 inch (6.35 to 393.70 mm) inclusive, corresponding to AS568 O-ring Dash No. sizes -108/-111, -206/-222, -325/-349, and -425/-460. The gland details herein allow the use of more stable, efficient, and reliable scraper devices than MS33675 glands.
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

Packing, Preformed - O-Ring Seal, Standard Sizes and Size Codes, Metric

2020-09-22
WIP
MA2010A

This standard provides the standard sizes and side identification codes for preformed packings, elastomeric o-ring seals, for use in metric aerospace fluid systems.

The aerospace o-ring sizes and size identification codes in this standard are in agreement with ISO 3601/1, Series A.

Standard

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

2020-08-25
CURRENT
AS5781B
This SAE Aerospace Standard (AS) specifies scarf-cut polytetrafluoroethylene (PTFE) retainers (backup rings) for use in glands in accordance with AS4716. They are usually used in hydraulic and pneumatic system components as anti-extrusion devices in conjunction with O-rings and other seals for static and dynamic applications. NOTE: This specification includes material tests but does not include hydraulic or pneumatic performance tests.
Standard

O-Ring Groove Design for Packing Preformed, Elastomeric O-Ring Seals, Static, Axial Compression, Metric

2020-08-11
WIP
MAP3439A
This recommended practice provides the design criteria for static elastomeric O-Ring seals used specifically for engine and engine control systems. It provides axial compression (face type) groove dimensions for aerospace metric O-Rings sizes specified in MA2010. The conditions considered to formulate the design criteria are also described, e.g., seal squeeze and groove volume to accommodate O-Ring volume swell.
Standard

O-Ring Groove Design for Packing Preformed, Elastomeric O-Ring Seals, Static, Radial Squeeze, Metric

2020-08-11
WIP
MAP3440A
This recommended practice provides the design criteria for static elastomeric O-Ring seals used specifically in engine and engine control systems. It provides radial compression groove dimensions for aerospace metric O-Ring sizes specified in MA2010. The conditions considered to formulate the design criteria are also described, e.g., seal stretch, cross-section reduction, seal squeeze and swell.
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.
Standard

O-Ring Molded from AMS7601 Butyl Rubber

2020-06-02
CURRENT
AS7985
This standard establishes the dimensional and visual quality requirements, lot requirements and packaging and labeling requirements for O-rings molded from AMS7601 butyl rubber. It shall be used for procurement purposes.
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