The Wrench,spanner, cataloged under National Stock Number 5120-00-421-7401, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-421-7401 |
| Item Name | Wrench,spanner |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Status | ACTIVE |
| Opening Diameter | 2.240 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Drive Surface Size | 0.504 INCHES MINIMUM AND 0.513 INCHES MAXIMUM SINGLE END IN |
| Angle Between Lugs | 90.0 DEGREES NOMINAL |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Lug Width | 0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Drive End Shape | SQUARE SINGLE END INTERNAL |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 4140 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 |
|---|---|
| T101600 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5120-00-421-7401 is a Wrench,spanner, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
Key specifications for 5120-00-421-7401: Opening Diameter: 2.240 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Drive Surface Size: 0.504 INCHES MINIMUM AND 0.513 INCHES MAXIMUM SINGLE END IN; Angle Between Lugs: 90.0 DEGREES NOMINAL. 9 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.