NPFC - FF-N-845
NUT, PLAIN, WING, INCH AND METRIC
| Organization: | NPFC |
| Publication Date: | 8 May 1981 |
| Status: | active |
| Page Count: | 5 |
scope:
This specification covers the complete general and dimensional data for various types of wing nuts designed in the inch and metric systems.
Wing nuts shall be of the following types, styles and sizes, as specified (see 6.2).
Type A - Cold forged. Style 1 - Undrilled regular wing. Style 2 - Drilled regular wing. Type B - Hot forged. Style 1 - Regular wing. Style 2 - High wing. Type C - Die casting. Style 1 - Regular wing. Style 2 - Low wing. Style 3 - High wing. Type D - Stamped. Style 1 - Regular wing. Style 2 - Low wing. Style 3 - Regular wing with larger bearing surface.
Wing nuts shall be classified by size in accordance with the basic major diameter of the thread.
intended Use:
A wing nut is a nut having wings designed for manual turning without driver or wrench.
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