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MS35338-139B
Military Standard Lock Washer
Description
MS 35338-139B Split Helical Lock Washer - Medium Series
Specifications
| Color | Black |
|---|---|
| Finish | Black Oxide |
| Hardness Rating | Between 35.0 rockwell c and 43.0 rockwell c |
| Hole Diameter | Between 0.255 inches and 0.263 inches |
| Material | CRES |
| Material Thickness | Between 0.062 inches and 0.072 inches |
| Max. Thickness | .072 |
| Maximum I.D. | .263 |
| Maximum O.D. | .489 |
| Min. Thickness | .062 |
| Min. Width | .109 |
| Minimum I.D. | .255 |
| NIIN | 00-243-4764 |
| NSN | 5310-00-243-4764 |
| Outside Diameter | 0.489 |
| Screw Size | 1/4 |
| Style Designator | Split helical-right hand |
| Surface Treatment | Oxide film |
| Weight | 0.001 lb |
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS35338-101 MS 1/4 · 31/64 in · Bronze
- MS35338-139 MS 1/4 · 31/64 in · CRES
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Catalog data updated 2026-07-05. Report a data error