标准名称：	信丰甜玉米
发布部门：	江西省质量技术监督局
发布日期：	2007-12-07
实施日期：	2008-01-01
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作废日期：
主管部门：	江西省质量技术监督局
出版社：	中国标准出版社
出版日期：	2008-01-01

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Product Code:SAE AS5798
Title:Aerospace Size Standard for Oversize O-rings
Issuing Committee:A-6c2 Seals Committee
Scope:This SAE Aerospace Standard (AS) is applicable to military and commercial aircraft. It specifies the dimensions, tolerances and size codes (dash numbers) for use in glands per MIL-G-5514 where squeeze at low temperature is often insufficient to provide a leak-tight seal. The dimensions and tolerances specified in this standard are suitable for any elastomeric material.This standard should not be used as a part standard, therefore no part numbers like AS5798-001X shall be created.Each dash number, which should be appended to an appropriate drawing or standard number, identifies one size O-ring only. An AS5798 sized O-ring is intended to replace an AS568 sized O-ring of the same dash number. An X suffix is part of the dash number to signify oversize.Temperature limitations of 275 掳F (135 掳C) and coefficient of thermal expansion of 9.0 x 10-5 unit length per 掳F (1.6 x 10-4 unit length per 掳C) were used for swell calculations. Applications that exceed these values should be evaluated for excessive gland fill.