The Wrench,socket, cataloged under National Stock Number 5120-00-293-0145, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 6 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5120-00-293-0145 |
| Primary Part Number | 276B |
| Item Name | Wrench,socket |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Wrenching Surface Size | 1.687 INCHES NOMINAL SINGLE END IN |
| Style Designator | SINGLE SOCKET OFFSET |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 CLASS |
| Wrenching Surface Shape | HEXAGON SINGLE END INTERNAL |
| Material | STEEL OVERALL |
| Offset Height | 3.500 INCHES MINIMUM 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 |
|---|---|
| 276B PRIMARY | Westinghouse Electric Corp (USA) |
| MX292828-276B PRIMARY | Babcock & Wilcox Co (USA) |
| 276B PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| GGG-W-641 TY1CL1 | 5/1 Secondary reference U.S. Government activity |
| MS16258-21 | 5/9 Secondary reference U.S. Government activity |
| 276B | 5/9 Secondary reference Trw Inc Hand Tools Div Trw Industrial Products Group |
| 276B | 3/9 Design control — primary reference Westinghouse Electric Corp Control Business Unit |
| GGG-W-641 | 4/1 Identification reference U.S. Government activity |
NSN 5120-00-293-0145 is a Wrench,socket, manufactured by Westinghouse Electric Corp, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-00-293-0145 has 3 manufacturer part numbers on file: 276B (Westinghouse Electric Corp), MX292828-276B (Babcock & Wilcox Co), 276B (General Electric Company).
2 possible matches (shared part number, not a government interchangeability claim): 5945-00-624-7100, 5840-01-658-1457. Verify interchangeability with system specifications before substitution.
Key specifications for 276B: Wrenching Surface Size: 1.687 INCHES NOMINAL SINGLE END IN; Style Designator: SINGLE SOCKET OFFSET; Overall Length: 14.500 INCHES MINIMUM IN; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS. 6 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.