The Ratchet Attachment,socket Wrench, cataloged under National Stock Number 5120-01-399-9761, 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 6 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5120-01-399-9761 |
| Primary Part Number | J5647 |
| Item Name | Ratchet Attachment,socket Wrench |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | The Stanley Works Dba Stanley Proto |
| Status | ACTIVE |
| Drive Surface Size | 0.750 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | EXTERNAL-INTERNAL |
| Drive End Shape | SQUARE FIRST END INTERNAL |
| Drive End Shape | SQUARE SECOND END EXTERNAL |
| 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 |
NSN 5120-01-399-9761 is a Ratchet Attachment,socket Wrench, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-399-9761 has 2 manufacturer part numbers on file: 1AP37 (W.w. Grainger, Inc. Div Government Sales Division), J5647 (The Stanley Works Dba Stanley Proto).
Key specifications for J5647: Drive Surface Size: 0.750 INCHES NOMINAL BOTH ENDS IN; Style Designator: EXTERNAL-INTERNAL; Overall Length: 3.688 INCHES NOMINAL IN; Drive End Shape: SQUARE FIRST END INTERNAL. 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.