inserts › screw thread inserts
MS21209F4-20P
Helicoil Insert
Description
Helicoil Insert
Specifications
| Insert Size | 0.326 in. max free od 0.306 in. min |
|---|---|
| Length | 0.500 |
| NIIN | 01-026-0238 |
| NSN | 5325-01-026-0238 |
| Special Features | Cadmium plate 0.0001 in. thk max |
| Style Designator | Coil |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 federal specification single treatment response |
| Thread Class | 3b |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 0.250 |
| Weight | 0.002 lb |
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 MS21209F4-20P. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error