The Extension,socket Wrench, cataloged under National Stock Number 5120-00-243-1679, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-243-1679 |
| Item Name | Extension,socket Wrench |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Status | ACTIVE |
| Drive Surface Size | 0.438 INCHES NOMINAL BOTH ENDS IN |
| Drive End Shape | SQUARE FIRST END EXTERNAL |
| Drive End Shape | SQUARE SECOND END INTERNAL |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| WU5006 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| WU5006 | 3/1 Design control — primary reference Naval Surface Warfare Center Indian Head |
NSN 5120-00-243-1679 is a Extension,socket Wrench, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
Key specifications for 5120-00-243-1679: Drive Surface Size: 0.438 INCHES NOMINAL BOTH ENDS IN; Overall Length: 1.250 INCHES NOMINAL IN; Drive End Shape: SQUARE FIRST END EXTERNAL; Drive End Shape: SQUARE SECOND END INTERNAL. 4 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.