The Wrench,open End, cataloged under National Stock Number 5120-01-652-3673, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Martin Sprocket and Gear Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-652-3673 |
| Primary Part Number | 3713MM |
| Item Name | Wrench,open End |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Martin Sprocket and Gear Inc |
| Status | ACTIVE |
| Large End Head Angle | 60.0 DEGREES NOMINAL |
| Large End Head Thickness | 5.6 MILLIMETERS NOMINAL MM |
| Small End Head Thickness | 5.6 MILLIMETERS NOMINAL MM |
| Small End Head Angle | 15.0 DEGREES NOMINAL |
| Wrenching Surface Size | 13.0 MILLIMETERS NOMINAL BOTH ENDS MM |
| Style Designator | DOUBLE HEAD |
| Specification/standard Data | 05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 2 TYPE AND 3 CLASS |
| Wrenching Surface Shape | OVAL 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 |
| Part Number | Manufacturer |
|---|---|
| 3713MM PRIMARY | Martin Sprocket and Gear Inc (USA) |
| J3113M PRIMARY | The Stanley Works Dba Stanley Proto (USA) |
| 426F56 | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| Reference | Meaning |
|---|---|
| B107.100 CAT 39 TY2CL3 | 5/1 Secondary reference U.S. Government activity |
| B107.100 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 5120-01-652-3673 is a Wrench,open End, manufactured by Martin Sprocket and Gear Inc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-652-3673 has 3 manufacturer part numbers on file: 3713MM (Martin Sprocket and Gear Inc), J3113M (The Stanley Works Dba Stanley Proto), 426F56 (W.w. Grainger, Inc. Div Government Sales Division).
Key specifications for 3713MM: Large End Head Angle: 60.0 DEGREES NOMINAL; Large End Head Thickness: 5.6 MILLIMETERS NOMINAL MM; Small End Head Thickness: 5.6 MILLIMETERS NOMINAL MM; Small End Head Angle: 15.0 DEGREES NOMINAL. 11 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.