nuts › plain hexagon nuts
AS5178D16
Plain Hexagon Nut
Description
Thread Size: 1-3/8", Nut Height: 3/8", Head Width: 1-5/8
Specifications
| Bearing Surface Type | Chamfered |
|---|---|
| Countersink Angle | 90.0 degrees nominal nut |
| Material | Aluminum |
| Material Specification | Qq-a-225/6 fed spec single material response |
| Nut Height | 0.390 inches minimum and 0.422 inches maximum |
| Nut Style | Hexagon |
| Surface Treatment | Anodize |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 12 |
| Thread Qty Per Inch (tpi) | 12 |
| Thread Series | UN |
| Thread Size | 1.3125 |
| Width Across Flats | 1.609 inches minimum and 1.641 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 AS5178D16 — functionally equivalent.
- AN924-16D Listed alternate 1-5/16-12 · Aluminum
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