The Wrench,box, cataloged under National Stock Number 5120-01-348-0958, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-348-0958 |
| Item Name | Wrench,box |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Status | ACTIVE |
| Large End Head Thickness | 0.172 INCHES NOMINAL IN |
| Small End Head Thickness | 0.156 INCHES NOMINAL IN |
| Large End Outside Diameter | 0.406 INCHES NOMINAL IN |
| Wrenching Surface Size | 0.219 INCHES NOMINAL FIRST END IN |
| Wrenching Surface Size | 0.234 INCHES NOMINAL SECOND END IN |
| Style Designator | DEEP ANGULAR OFFSET DOUBLE HEAD |
| Small End Outside Diameter | 0.375 INCHES NOMINAL IN |
| Specification/standard Data | 05047-ASME B107.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 3 TYPE AND 2 CLASS |
| Wrenching End Offset Angle | 40.0 DEGREES MINIMUM AND 65.0 DEGREES MAXIMUM |
| Wrenching Surface Shape | 6 POINT BOTH ENDS INTERNAL |
| Surface Treatment | CHROMIUM OVERALL |
| 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 |
|---|---|
| B107.9 TY3CL2 | 5/1 Secondary reference U.S. Government activity |
| B107.9M | 5/9 Secondary reference The American Society of Mechanical Engineers |
| 27-016 | 5/9 Secondary reference Armstrong Bros Tool Co |
| 27-016 | 5/9 Secondary reference Apex Tool Group, Llc Dba Nicholson |
| B107.100 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
| B107.9 | 5/1 Secondary reference The American Society of Mechanical Engineers |
| 27-016 | 5/9 Secondary reference Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. |
NSN 5120-01-348-0958 is a Wrench,box, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 6625-01-360-7209, 5325-01-412-9733. Verify interchangeability with system specifications before substitution.
Key specifications for 5120-01-348-0958: Large End Head Thickness: 0.172 INCHES NOMINAL IN; Small End Head Thickness: 0.156 INCHES NOMINAL IN; Large End Outside Diameter: 0.406 INCHES NOMINAL IN; Wrenching Surface Size: 0.219 INCHES NOMINAL FIRST END IN. 13 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.