SAE MA 1370-1990
MJ剖面螺纹,公制[代替: SAE AS 1370A]

Screw Threads - MJ Profile, Metric [Superseded: SAE AS 1370A]

SAE MA 1370-1990 发布历史

To establish a metric module version of the UNJ profile, MIL-S-8879 inch screw thread standard, predominantly used in aerospace inch designs. This standard specifies the characteristics of the MJ profile metric series of screw threads, altered from ISO 68 M Profile, to include a mandatory controlled radius of 0.18042P to 0.15011P at the root of the external thread and with the minor diameter of both external and internal threads increased to provide a basic thread height of 0.5625H in order to accommodate the external thread maximum root radius.

SAE MA 1370-1990由美国机动车工程师协会 US-SAE 发布于 1990-01-01。

SAE MA 1370-1990 在中国标准分类中归属于: V20 紧固件，在国际标准分类中归属于: 49.030.10 螺纹。

SAE MA 1370-1990 发布之时，引用了标准

• ISO 68-1973 ISO 通用螺纹.基本牙形
• ISO 261-1973 一般用途米制螺纹.一般示意图
• ISO 965-1-1980 一般用途米制螺纹.公差.第1部分:原则和基本数据
• ISO 965-3-1980 一般用途米制螺纹.公差.第3部分:加工螺纹的偏差
• ISO/R 1501-1970 微型螺纹
• SAE AS 1338-1976 航空米制60螺纹截面和公差分级
• SAE AS 1421-1976 轴杆或轴承阻滞螺纹用米制60螺纹的航空选择的直径螺距组合

SAE MA 1370-1990的历代版本如下：

• 1990年01月01日 SAE MA 1370-1990 MJ剖面螺纹,公制[代替: SAE AS 1370A]

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标准号

SAE MA 1370-1990

发布日期

1990年01月01日

实施日期

废止日期

无

中国标准分类号

V20

国际标准分类号

49.030.10

发布单位

US-SAE

引用标准

ISO 68-1973 ISO 261-1973 ISO 965-1-1980 ISO 965-3-1980 ISO/R 1501-1970 SAE AS 1337 SAE AS 1338-1976 SAE AS 1421-1976 SAE MA 1566

适用范围

To establish a metric module version of the UNJ profile, MIL-S-8879 inch screw thread standard, predominantly used in aerospace inch designs. This standard specifies the characteristics of the MJ profile metric series of screw threads, altered from ISO 68 M Profile, to include a mandatory controlled radius of 0.18042P to 0.15011P at the root of the external thread and with the minor diameter of both external and internal threads increased to provide a basic thread height of 0.5625H in order to accommodate the external thread maximum root radius.

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