BS ISO 8642:2008
Current
The latest, up-to-date edition.
Aerospace. Self-locking nuts with maximum operating temperature greater than 425 degrees C. Test methods
Hardcopy , PDF
English
31-12-2008
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Foreword
1 Scope
2 Normative references
3 Inspections and tests
3.1 Hardness test
3.2 Bearing surface squareness test
3.3 Axial load test
3.4 Wrenching feature test
3.5 Torque-out test
3.6 Test of no rotation of the captive washer
3.7 Push-out test
3.8 Self-locking torque at ambient temperature
3.9 Self-locking torque at ambient temperature after heat soak
at maximum operating temperature
3.10 Permanent set test
3.11 Vibration test
3.12 Swaging test
Describes test methods for metric self-locking nuts with MJ threads intended for use in aerospace construction at maximum operating temperature greater than 425 degrees C.
| Committee |
ACE/12
|
| DevelopmentNote |
Supersedes BS A298(1988). (12/2008) Supersedes 05/30136401 DC. (01/2009)
|
| DocumentType |
Standard
|
| Pages |
30
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies test methods for metric self-locking nuts with MJ threads intended for use in aerospace construction at maximum operating temperature greater than 425°C. It describes the test device and the method for each test.
It applies to self-locking nuts as defined above, provided that the relevant documents (dimensional standard, drawing, procurement specification, etc.) refer to this International Standard.
Other test devices or test methods than those specified in this International Standard may be used, but, in the event of a dispute, the requirements laid down in this International Standard shall take precedence.
This International Standard shall be used in conjunction with ISO8641.
| Standards | Relationship |
| ISO 8642:2008 | Identical |
| ISO 6507-1:2005 | Metallic materials Vickers hardness test Part 1: Test method |
| ISO 5855-2:1999 | Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts |
| ISO 691:2005 | Assembly tools for screws and nuts — Wrench and socket openings — Tolerances for general use |
| ISO 8641:2008 | Aerospace — Self-locking nuts with maximum operating temperature greater than 425 degrees C — Procurement specification |
| ISO 6508-1:2016 | Metallic materials — Rockwell hardness test — Part 1: Test method |
| ISO 7403:1998 | Aerospace — Spline drives — Wrenching configuration — Metric series |
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