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Wrenching Configuration, 12 Spline, For Metric Threaded Fasteners
- Aerospace Standard
- MA1549
- Reaffirmed
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Rationale
MA1549 has been reaffirmed to comply with the SAE five-year review policy.
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VARIATIONS IN SIZE, FORM, AND POSITION OF THE 12 SPLINES ARE PERMITTED WITHIN THE WRENCHING LENGTH, PROVIDING THE ACTUAL PROFILE FALLS WITHIN THE MAXIMUM AND MINIMUM MATERIAL CONDITIONS SHOWN.
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DIMENSIONS ARE PRIOR TO FORMING OF THE LOCKING ELEMENT ON SELF LOCKING NUTS. LOCKING ELEMENT SHALL NOT PREVENT THE ASSEMBLY OF THE WRENCH (PER MA 1586) ON THE WRENCHING ELEMENT.
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REFERENCE ONLY: THIS STANDARD IS IN AGREEMENT WITH ISO DRAFT PROPOSAL ISO/TC20/SC4 DOC. N942 FOR THE 12 SPLINE WRENCHING CONFIGURATION. DIMENSIONING AND TOLERANCING PER ANSI Y14.5–1973.
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Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| TABLE I | MILLIMETRES |
Issuing Committee
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.
Reference
| Number | Title |
|---|---|
| MA1586 | Wrench Configuration, 12 Spline Drive, Metric |
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