The Adapter,torque Wrench, cataloged under National Stock Number 5120-00-910-1858, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5120-00-910-1858 |
| Primary Part Number | 123GT10173 |
| Item Name | Adapter,torque Wrench |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Drive Surface Size | 0.507 INCHES NOMINAL FIRST END IN |
| Torque Capacity | 0.0 INCH-POUNDS MINIMUM AND 1200.0 INCH-POUNDS MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM |
| Wrenching Surface Size | 0.750 INCHES NOMINAL SECOND END IN |
| Style Designator | OPEN END |
| Wrenching Surface Shape | OVAL SECOND END INTERNAL |
| Drive End Shape | SQUARE FIRST END INTERNAL |
| Head Angle | 0.0 DEGREES NOMINAL |
| Functional Description | USED TO INSTALL FORWARD LORD VIBRATION ISOLATORS TO THE ENGINE GEAR BOX |
| Drive End Head Thickness | 0.375 INCHES NOMINAL IN |
| Drive End Outside Diameter | 0.875 INCHES NOMINAL IN |
| Material | STEEL COMP 4340 OVERALL |
| Wrenching End Head Thickness | 0.375 INCHES NOMINAL IN |
| 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 |
|---|---|
| 123GT10173 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 123GT10173 | 3/2 Design control — primary reference U.S. Government activity |
| 123GT10173 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5120-00-910-1858 is a Adapter,torque Wrench, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-00-910-1858 has 1 manufacturer part number on file: 123GT10173 (Northrop Grumman Systems Corporation).
Key specifications for 123GT10173: Drive Surface Size: 0.507 INCHES NOMINAL FIRST END IN; Torque Capacity: 0.0 INCH-POUNDS MINIMUM AND 1200.0 INCH-POUNDS MAXIMUM IN; Hardness Rating: 46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM; Wrenching Surface Size: 0.750 INCHES NOMINAL SECOND 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.