The Wrench,box, cataloged under National Stock Number 5120-01-334-3221, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-334-3221 |
| Primary Part Number | SBX1820 |
| Item Name | Wrench,box |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | ACTIVE |
| Large End Head Thickness | 0.406 INCHES NOMINAL IN |
| Small End Head Thickness | 0.344 INCHES NOMINAL IN |
| Large End Outside Diameter | 0.938 INCHES NOMINAL IN |
| Wrenching Surface Size | 0.562 INCHES NOMINAL FIRST END IN |
| Wrenching Surface Size | 0.625 INCHES NOMINAL SECOND END IN |
| Style Designator | S-SHAPED DOUBLE HEAD |
| Small End Outside Diameter | 0.844 INCHES NOMINAL IN |
| 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 |
NSN 5120-01-334-3221 is a Wrench,box, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-334-3221 has 2 manufacturer part numbers on file: SBX1820 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), SBX1820 (Snap on Tools).
Key specifications for SBX1820: Large End Head Thickness: 0.406 INCHES NOMINAL IN; Small End Head Thickness: 0.344 INCHES NOMINAL IN; Large End Outside Diameter: 0.938 INCHES NOMINAL IN; Wrenching Surface Size: 0.562 INCHES NOMINAL FIRST END IN. 10 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.