The Wrench,box, cataloged under National Stock Number 5120-01-398-9150, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5120-01-398-9150 |
| Primary Part Number | 00943923000 |
| Item Name | Wrench,box |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Sears, Roebuck and Co. Dba Sears Div Sears Commercial |
| Status | ACTIVE |
| Wrenching Surface Size | 0.500 INCHES NOMINAL FIRST END IN |
| Wrenching Surface Size | 0.562 INCHES NOMINAL SECOND END IN |
| Style Designator | SHALLOW ANGULAR OFFSET DOUBLE HEAD |
| Wrenching End Offset Angle | 15.0 DEGREES NOMINAL |
| Wrenching Surface Shape | 12 POINT BOTH ENDS 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 |
|---|---|
| 00943923000 PRIMARY | Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA) |
| 43923 | Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA) |
| Reference | Meaning |
|---|---|
| 9-43923 | 5/9 Secondary reference Sears, Roebuck and Co. Dba Sears Div Sears Commercial |
NSN 5120-01-398-9150 is a Wrench,box, manufactured by Sears, Roebuck and Co. Dba Sears Div Sears Commercial, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-398-9150 has 2 manufacturer part numbers on file: 00943923000 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial), 43923 (Sears, Roebuck and Co. Dba Sears Div Sears Commercial).
1 possible match (shared part number, not a government interchangeability claim): 6695-01-418-9266. Verify interchangeability with system specifications before substitution.
Key specifications for 00943923000: Wrenching Surface Size: 0.500 INCHES NOMINAL FIRST END IN; Wrenching Surface Size: 0.562 INCHES NOMINAL SECOND END IN; Style Designator: SHALLOW ANGULAR OFFSET DOUBLE HEAD; Overall Length: 9.125 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.