The Socket,socket Wrench, cataloged under National Stock Number 5120-01-428-4874, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-428-4874 |
| Primary Part Number | J5226M |
| Item Name | Socket,socket Wrench |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | The Stanley Works Dba Stanley Proto |
| Status | ACTIVE |
| Drive Surface Size | 0.375 INCHES NOMINAL SINGLE END IN |
| Wrenching Surface Size | 26.0 MILLIMETERS NOMINAL SINGLE END MM |
| Style Designator | INTERNAL-INTERNAL |
| Features Provided | MANUAL TOOL |
| Wrenching Surface Shape | 12 POINT SINGLE END INTERNAL |
| Drive End Shape | SQUARE SINGLE END 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 |
|---|---|
| MT26 | Gray Hand Tool Sales Ltd (CAN) |
| 5F426 | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| J5226M PRIMARY | The Stanley Works Dba Stanley Proto (USA) |
| Reference | Meaning |
|---|---|
| 5226M | 5/9 Secondary reference The Stanley Works Dba Stanley Proto |
NSN 5120-01-428-4874 is a Socket,socket Wrench, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-428-4874 has 3 manufacturer part numbers on file: MT26 (Gray Hand Tool Sales Ltd), 5F426 (W.w. Grainger, Inc. Div Government Sales Division), J5226M (The Stanley Works Dba Stanley Proto).
1 possible match (shared part number, not a government interchangeability claim): 5805-01-631-7759. Verify interchangeability with system specifications before substitution.
Key specifications for J5226M: Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN; Wrenching Surface Size: 26.0 MILLIMETERS NOMINAL SINGLE END MM; Style Designator: INTERNAL-INTERNAL; Overall Length: 34.8 MILLIMETERS NOMINAL MM. 8 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.