The Wrench,open End, cataloged under National Stock Number 5120-01-335-2178, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5120-01-335-2178 |
| Item Name | Wrench,open End |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Status | ACTIVE |
| Large End Head Angle | 15.0 DEGREES NOMINAL |
| Wrenching Surface Size | 0.531 INCHES NOMINAL SECOND END IN |
| Wrenching Surface Size | 0.438 INCHES NOMINAL FIRST END IN |
| Style Designator | THIN DOUBLE HEAD |
| Wrenching Surface Shape | OVAL BOTH ENDS INTERNAL |
| Surface Treatment | CHROMIUM OVERALL |
| Head Angle | 15.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 65-117 | 3/9 Design control — primary reference Apex Tool Group, Llc Dba Nicholson |
| 65-117 | 5/9 Secondary reference Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. |
NSN 5120-01-335-2178 is a Wrench,open End, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
Key specifications for 5120-01-335-2178: Large End Head Angle: 15.0 DEGREES NOMINAL; Wrenching Surface Size: 0.531 INCHES NOMINAL SECOND END IN; Wrenching Surface Size: 0.438 INCHES NOMINAL FIRST END IN; Style Designator: THIN DOUBLE HEAD. 8 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.