The Welding Machine,inverter, cataloged under National Stock Number 3431-01-680-7541, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Lincoln Electric Holdings Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3431-01-680-7541 |
| Primary Part Number | K3443-2 |
| Item Name | Welding Machine,inverter |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Manufacturer | Lincoln Electric Holdings Inc |
| Status | ACTIVE |
| Phase | SINGLE OR THREE |
| Current Type | DC |
| Arc Current Type | DC |
| Design Type | GENERATOR |
| Output Current Rating in Amps | 425.0 MAXIMUM |
| Power Source | ELECTRIC MOTOR |
| Voltage in Volts | 80.0 |
| Operator Type for Which Designed | MULTIPLE |
| Mounting Type | SKID |
| 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 |
|---|---|
| K3443-2 PRIMARY | Lincoln Electric Holdings Inc (USA) |
| Reference | Meaning |
|---|---|
| V350 PRO | 5/1 Secondary reference Lincoln Electric Holdings Inc |
| K1728-6 | 3/9 Design control — primary reference Lincoln Electric Holdings Inc |
| K3443-1 | 5/9 Secondary reference Lincoln Electric Holdings Inc |
NSN 3431-01-680-7541 is a Welding Machine,inverter, manufactured by Lincoln Electric Holdings Inc, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
NSN 3431-01-680-7541 has 1 manufacturer part number on file: K3443-2 (Lincoln Electric Holdings Inc).
Key specifications for K3443-2: Phase: SINGLE OR THREE; Current Type: DC; Arc Current Type: DC; Design Type: GENERATOR. 9 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.