nuts › plain castellated hexagon nuts
AN320D12
Aeronautical Standard Castellated Plain Nut
Description
Thread Size: 3/4", Nut Height: 3/8", Head Width: 1-5/32"
Specifications
| Bearing Surface Finish | 125.0 microinches |
|---|---|
| Bearing Surface Type | Chamfered or washer faced |
| Material | Aluminum |
| Material Specification | Qq-a-200/3 fed spec single material response or qq-a-225/6 fed spec single material response or qq-a-250/4 fed spec single material response |
| Nut Height | 0.359 inches minimum and 0.391 inches maximum |
| Nut Style | Slotted, hexagon |
| Surface Treatment | Chromate |
| Surface Treatment Specification | Mil-c-5541 mil spec single treatment response or mil-a-8625 mil spec single treatment response |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 16 |
| Thread Qty Per Inch (tpi) | 16 |
| Thread Series | UNF |
| Thread Size | 0.750 |
| Width Across Flats | 1.109 inches minimum and 1.227 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN320D12. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error