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Nut, Self-Locking, UNS S66286, 1200 °F, 160,000 psi, UNJ Thread
- Aerospace Standard
Published November 11, 2020 by SAE International in United States
Downloadable datasets availableAnnotation ability available
This specification establishes the requirements for the following types of self-locking nuts:
Wrenching Nuts: i.e., hexagon and double hexagon nuts.
Anchor Nuts: i.e., plate nuts, gang channel nuts, and shank nuts.
The wrenching nuts, shank nuts, and nut elements of plate and gang channel nuts are made of corrosion and heat resistant precipitation hardenable iron base alloy of the type identified under the Unified Numbering System as UNS S66286 and of 160,000 psi axial tensile strength at room temperature, with maximum conditioning temperature of parts at 1200 °F prior to room temperature testing.
Para 3.9.1 - sensitivity level 2 minimum added. Para 3.10.7 - deletion of note regarding after testing assembly. Table 5 - 0.375 assembly torque corrected. Table 10 - 10,001 to 35,000 lot size corrected. Specifications updated and document updated where required.
Data Sets - Support Documents
|Unnamed Dataset 1|
|Unnamed Dataset 2|
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|Table 1||Axial tensile load|
|Table 2||Wrench torque|
|Table 3||Push-out load|
|Table 4||Torque-out load|
|Table 5||Locking feature torques and installation torque|
|Table 6||Assembly torque for accelerated vibration test|
|Table 7||Summary of acceptance tests|
|Table 8||Summary of qualification tests|
|Table 9||Classification of visual and dimensional characteristics|
|Table 10||Sampling data|
|Table 11||Sampling data|
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|Table E1||Maximum material bolt or stud pitch diameter|
|Table E2||Minimum material bolt or stud thread dimensions|
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|Table F1||SPACER LENGTH AND BOLT ELONGATION|
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E-25 General Standards for Aerospace and Propulsion Systems
The SAE E-25 General Standards for Aerospace & Propulsion Systems committee addresses aerospace propulsion systems and components. These systems and components include bolts, screws, nuts, washers, studs, rivets, pins, covers, O-rings, brackets, plugs and associated procurement requirements, as well as solid film lubricants and design specifications for screw threads and fastener assembly requirements.
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