The Wrench,chain, cataloged under National Stock Number 5120-01-018-3203, 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 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-018-3203 |
| Primary Part Number | CW12 |
| Item Name | Wrench,chain |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,12.000 IN. LG HANDLE,0.875 IN. TO 4.000 IN. GRIPPING CAPACITY,16.500 IN. LG CHAIN 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 |
|---|---|
| CW12 PRIMARY | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| Reference | Meaning |
|---|---|
| 9H55713 | 5/9 Secondary reference Sears, Roebuck and Co. Dba Sears Div Sears Commercial |
| CW12 | 5/9 Secondary reference Snap on Tools Corp Service Repair Center |
| 423170-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5120-01-018-3203 is a Wrench,chain, 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 5120-01-018-3203 has 1 manufacturer part number on file: CW12 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).
2 possible matches (shared part number, not a government interchangeability claim): 3460-01-044-4908, 7690-01-379-1322. Verify interchangeability with system specifications before substitution.
Key specifications for CW12: General Characteristics Item Description: STEEL,12.000 IN. LG HANDLE,0.875 IN. TO 4.000 IN. GRIPPING CAPACITY,16.500 IN. LG CHAIN IN. 1 specification is 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.