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SAE AS4389
- Nut - Self-Locking Clinch, Serrated Shank, Hole Preparation, Installation and Removal Procedures
- standard by SAE International, 10/01/1992
- Publisher: SAE
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This SAE Aerospace Standard (AS) provides minimum design, hole preparation, installation and removal requirements for AS3272, AS3273, MA 3274, and MA3275 serrated shank self-locking clinch nuts. This standard is applicable when specified on engineering drawings or in procurement documents.