The Socket,socket Wrench, cataloged under National Stock Number 5120-01-266-1925, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Daniels Manufacturing Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-266-1925 |
| Primary Part Number | BT-J-148 |
| Item Name | Socket,socket Wrench |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Daniels Manufacturing Corporation |
| Status | ACTIVE |
| Drive Surface Size | 0.375 INCHES NOMINAL SINGLE END IN |
| Wrenching End Outside Diameter | 2.250 INCHES NOMINAL IN |
| Style Designator | INTERNAL-INTERNAL |
| Features Provided | MANUAL TOOL |
| Wrenching Surface Shape | 6 POINT SINGLE END INTERNAL |
| Drive End Shape | SQUARE SINGLE END INTERNAL |
| Material | PLASTIC 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 |
|---|---|
| 21181-0003-0120 | Thales Uk Limited Dba Thales Uk Ltd Defence Mission Systems (GBR) |
| BT-J-148 PRIMARY | Daniels Manufacturing Corporation (USA) |
| BT-J-148 | Oceta (FRA) |
| Reference | Meaning |
|---|---|
| 10454257 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5120-01-266-1925 is a Socket,socket Wrench, manufactured by Daniels Manufacturing Corporation, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-266-1925 has 3 manufacturer part numbers on file: 21181-0003-0120 (Thales Uk Limited Dba Thales Uk Ltd Defence Mission Systems), BT-J-148 (Daniels Manufacturing Corporation), BT-J-148 (Oceta).
Key specifications for BT-J-148: Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN; Wrenching End Outside Diameter: 2.250 INCHES NOMINAL IN; Style Designator: INTERNAL-INTERNAL; Overall Length: 1.470 INCHES NOMINAL IN. 7 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.