The Handle,socket Wrench, cataloged under National Stock Number 5120-01-398-7643, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Sears, Roebuck and Co. Dba Sears Div Sears Commercial. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5120-01-398-7643 |
| Primary Part Number | 43781 |
| Item Name | Handle,socket Wrench |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Sears, Roebuck and Co. Dba Sears Div Sears Commercial |
| Status | ACTIVE |
| Drive Surface Size | 0.375 INCHES NOMINAL SINGLE END IN |
| Style Designator | RATCHET |
| Specification/standard Data | 05047-ASME B107.10 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 1 TYPE AND 2 CLASS |
| Drive End Shape | SQUARE SINGLE 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 |
| Part Number | Manufacturer |
|---|---|
| 43781 | Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA) |
| 00943781000 | Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA) |
| Reference | Meaning |
|---|---|
| B107.10 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
| B107.10 TY1CL2 | 5/1 Secondary reference U.S. Government activity |
| 9-43781 | 5/9 Secondary reference Sears, Roebuck and Co. Dba Sears Div Sears Commercial |
NSN 5120-01-398-7643 is a Handle,socket Wrench, manufactured by Sears, Roebuck and Co. Dba Sears Div Sears Commercial, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-398-7643 has 2 manufacturer part numbers on file: 43781 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial), 00943781000 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-494-7534. Verify interchangeability with system specifications before substitution.
Key specifications for 43781: Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN; Style Designator: RATCHET; Overall Length: 6.875 INCHES NOMINAL IN; Specification/standard Data: 05047-ASME B107.10 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 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.