The Wrench,box, cataloged under National Stock Number 5120-00-252-0242, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Stanley Industrial & Automotive Llc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-252-0242 |
| Primary Part Number | CB054 |
| Item Name | Wrench,box |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Stanley Industrial & Automotive Llc |
| Status | ACTIVE |
| Drive Surface Size | 0.378 INCHES MINIMUM AND 0.383 INCHES MAXIMUM SINGLE END IN |
| Wrenching Surface Size | 0.375 INCHES NOMINAL SINGLE END IN |
| Material Document and Classification | MIL-S-5626 MIL STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN |
| Wrenching Surface Shape | 12 POINT SINGLE END INTERNAL |
| Drive End Shape | SQUARE SINGLE END INTERNAL |
| Material | STEEL COMP 4140 OVERALL |
| Head Thickness | 0.3125 INCHES NOMINAL 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 |
|---|---|
| CB054 PRIMARY | Stanley Industrial & Automotive Llc (USA) |
NSN 5120-00-252-0242 is a Wrench,box, manufactured by Stanley Industrial & Automotive Llc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-00-252-0242 has 1 manufacturer part number on file: CB054 (Stanley Industrial & Automotive Llc).
Key specifications for CB054: Drive Surface Size: 0.378 INCHES MINIMUM AND 0.383 INCHES MAXIMUM SINGLE END IN; Wrenching Surface Size: 0.375 INCHES NOMINAL SINGLE END IN; Material Document and Classification: MIL-S-5626 MIL STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN. 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.