AS5860A-2009

Retainers@ (Back-Up Rings)@ Hydraulic and Pneumatic@ Polytetrafluoroethylene Resin@ Single Turn@ Static Gland

AS5860A-2009 发布历史

"This Aerospace Standard (AS) covers scarf-cut 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 ??(-54 ??to 135 ?? and a nominal operating pressure of 3000 psi (20.7 MPa) for code 09 material and 5000 psi (34.5 MPa) for code 10 material. Material codes are based on AMS3678 material types. Consideration has been made to accommodate cylinder breathing on piston applications@ calculated at .002 inch/inch diameter/1@000 psi (.051 mm/mm diameter/6.9 MPa) to ensure a minimum 50% lap at -65 ??(-54 ??. This has required an increase in the diameter on certain larger sizes and a slight overlap at ambient will therefore be apparent. These parts have been designed such that the overlap at 275 ??(135 ?? will not result in axial compression of the O-rings@ even in the worst tolerance stack-up situation."

AS5860A-2009由SAE - SAE International 发布于 2009-02-01，并于 2014-11-22 实施。

AS5860A-2009的历代版本如下：

• 2009年02月01日 AS5860A-2009

非常抱歉，我们暂时无法提供预览，您可以试试： 免费下载 AS5860A-2009 前三页，或者稍后再访问。

注意： 点击下载后，生成下载文件时间比较长，请耐心等待......

标准号

AS5860A-2009

发布日期

2009年02月01日

实施日期

2014年11月22日

废止日期

无

中国标准分类号

/

国际标准分类号

/

发布单位

SAE - SAE International

引用标准

16

适用范围

"This Aerospace Standard (AS) covers scarf-cut 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 ??(-54 ??to 135 ?? and a nominal operating pressure of 3000 psi (20.7 MPa) for code 09 material and 5000 psi (34.5 MPa) for code 10 material. Material codes are based on AMS3678 material types. Consideration has been made to accommodate cylinder breathing on piston applications@ calculated at .002 inch/inch diameter/1@000 psi (.051 mm/mm diameter/6.9 MPa) to ensure a minimum 50% lap at -65 ??(-54 ??. This has required an increase in the diameter on certain larger sizes and a slight overlap at ambient will therefore be apparent. These parts have been designed such that the overlap at 275 ??(135 ?? will not result in axial compression of the O-rings@ even in the worst tolerance stack-up situation."