inserts › screw thread inserts
MS21209C4-15
Helicoil Insert
Description
Helicoil Insert
Specifications
| Insert Size | 0.330 in. max 0.310 in. min |
|---|---|
| Length | 0.375 |
| Material | CRES |
| NIIN | 00-754-0847 |
| NSN | 5325-00-754-0847 |
| Special Features | Staggered coils' grip location |
| Style Designator | Coil |
| Surface Treatment | Passivate |
| Thread Direction | Right-hand |
| Thread Length | 0.375 |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse 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
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- NAS1130-4-15 NAS 1/4-20 · 3/8 in · CRES
- NAS1130-4-15D NAS 1/4-20 · 3/8 in · CRES
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Catalog data updated 2026-07-05. Report a data error