nuts › plain castellated hexagon nuts
AN320C2
Aeronautical Standard Castellated Plain Nut
Description
Thread Size: 1/8", Nut Height: 1/8", Head Width: 3/8"
Specifications
| Bearing Surface Type | Chamfered or washer faced |
|---|---|
| Countersink Angle | 110.0 degrees nominal nut |
| Material | CRES |
| Material Specification | 66 fed std all material responses |
| Nondefinitive Specification/Std Data | 4 type and 16 style and a condition |
| Nut Height | 0.140 inches minimum and 0.172 inches maximum |
| Nut Style | Slotted, hexagon |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 36 |
| Thread Qty Per Inch (tpi) | 36 |
| Thread Series | UNF |
| Thread Size | 0.164 |
| Width Across Flats | 0.334 inches minimum and 0.346 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 AN320C2. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error