inserts › screw thread inserts
MS51831CA206L
Military Standard Screw Thread Insert
Description
Screw Thread Insert
Specifications
| Features Provided | Individually keyed |
|---|---|
| Full Internal Thread Length | 0.588 |
| Insert Size | 0.6875-11ns-2a |
| Internal Thread Relief Depth | Between 0.09 inches and 0.11 inches |
| Length | Between 0.673 inches and 0.703 inches |
| Material | CRES |
| Material Specification | Ams 5734 assn standard single material response or ams 5737 assn standard single material response |
| Special Features | Internal thd 0.5000-20; top of insert identified by one dash mark; four locking keys paced 90.0 degrees apart |
| Style Designator | Grooved keylock |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Length | 0.588 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 0.5 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
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.
- MS51831CA206 MS 1/2-20 · 0.703 in · Steel
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Catalog data updated 2026-07-05. Report a data error