nuts › plain hexagon nuts
AS5178J05
Plain Hexagon Nut
Description
Thread: 1/2-20, Thread Size: 1/2", Nut Height: 1/4", Head Width: 3/4
Specifications
| Bearing Surface Type | Chamfered |
|---|---|
| Countersink Angle | 90.0 degrees nominal nut |
| Material | CRES |
| Material Specification | Qq-s-736,cond a fed spec single material response |
| Nut Height | 0.234 inches minimum and 0.266 inches maximum |
| Nut Style | Hexagon |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Mil-s-5002 mil spec single treatment response |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNF |
| Thread Size | 0.500 |
| Width Across Flats | 0.746 inches minimum and 0.753 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for AS5178J05 — functionally equivalent.
- AN924-5J Listed alternate 1/2-20 · CRES
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error