The Wrench,box and Open End,combinat, cataloged under National Stock Number 5120-00-830-4737, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Mclaughlin Industrial Distributors Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5120-00-830-4737 |
| Primary Part Number | 3812535 |
| Item Name | Wrench,box and Open End,combinat |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Mclaughlin Industrial Distributors Inc |
| Status | ACTIVE |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM |
| Wrenching Surface Size | 0.562 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | ANGULAR OFFSET |
| Wrenching End Offset Angle | 15.0 DEGREES NOMINAL |
| Wrenching Surface Shape | 12 POINT SECOND END INTERNAL |
| Wrenching Surface Shape | OVAL FIRST END INTERNAL |
| Surface Treatment | CHROMIUM OVERALL |
| Functional Description | USED TO INSTALL/REMOVE ALTERNATOR DRIVE UNIT AND GEAR BOX |
| 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 |
|---|---|
| 3812535 | Mclaughlin Industrial Distributors Inc (USA) |
| Reference | Meaning |
|---|---|
| 3812535 | 3/2 Design control — primary reference U.S. Government activity |
| 3812535 | 5/9 Secondary reference The Boeing Company |
NSN 5120-00-830-4737 is a Wrench,box and Open End,combinat, manufactured by Mclaughlin Industrial Distributors Inc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-00-830-4737 has 1 manufacturer part number on file: 3812535 (Mclaughlin Industrial Distributors Inc).
Key specifications for 3812535: Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM; Wrenching Surface Size: 0.562 INCHES NOMINAL BOTH ENDS IN; Style Designator: ANGULAR OFFSET; Overall Length: 8.000 INCHES MINIMUM AND 9.250 INCHES MAXIMUM IN. 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.