ISO 15872:2017
Aerospace — UNJ threads — Gauging
ISO 15872:2017 provides methods for the gauging of ISO UNJ threads complying with ISO 3161.
Other methods of ensuring that the product is within the specified limits can be used, provided that correlation with the specified gauges is established.
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Foreword
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
3.2 Symbols and abbreviated terms
4 Types of gauges
4.1 Gauges and setting plugs for external threaded products
4.2 Gauges for internal threaded products
5 Reference temperature
6 Function, design and use of gauges
6.1 Gauges for external threads
6.1.1 Virtual pitch diameter indicating thread gauges
6.1.2 Solid or adjustable GO screw ring gauges
6.1.3 Simple pitch diameter indicating thread gauges
6.1.4 Major diameter gauges
6.1.5 Minor diameter gauges
6.1.6 Optical comparator checks
6.2 Gauging for internal threads
6.2.1 GO screw plug gauges
6.2.2 NOT GO screw plug gauges
6.2.3 Minor diameter gauges
6.2.4 Virtual pitch diameter indicating thread gauges
6.2.5 Simple pitch diameter indicating thread gauges
7 Setting of gauges
7.1 Setting gauges for external threads
7.2 Setting ring gauge for indication thread gauges
8 Gauging of threads
8.1 General
8.2 Internal threads evaluation
Bibliography
Blank Page
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Foreword
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
3.2 Symbols and abbreviated terms
4 Types of gauges
4.1 Gauges and setting plugs for external threaded products
4.2 Gauges for internal threaded products
5 Reference temperature
6 Function, design and use of gauges
6.1 Gauges for external threads
6.1.1 Virtual pitch diameter indicating thread gauges
6.1.2 Solid or adjustable GO screw ring gauges
6.1.3 Simple pitch diameter indicating thread gauges
6.1.4 Major diameter gauges
6.1.5 Minor diameter gauges
6.1.6 Optical comparator checks
6.2 Gauging for internal threads
6.2.1 GO screw plug gauges
6.2.2 NOT GO screw plug gauges
6.2.3 Minor diameter gauges
6.2.4 Virtual pitch diameter indicating thread gauges
6.2.5 Simple pitch diameter indicating thread gauges
7 Setting of gauges
7.1 Setting gauges for external threads
7.2 Setting ring gauge for indication thread gauges
8 Gauging of threads
8.1 General
8.2 Internal threads evaluation
Bibliography
Blank Page