The Welding Machine,arc, cataloged under National Stock Number 3431-01-556-7440, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3431-01-556-7440 |
| Item Name | Welding Machine,arc |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Status | ACTIVE |
| Frequency in Hertz | 60.0 |
| Current Type | AC OR DC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 500 421 | 3/9 Design control — primary reference Hobart Corp |
NSN 3431-01-556-7440 is a Welding Machine,arc, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
Key specifications for 3431-01-556-7440: Frequency in Hertz: 60.0; Current Type: AC OR DC; Special Features: 235 AC / 160 DC POWER SOUCE, YOU CAN CHOOSE BETWEEN AC OR DC WELD OUTPUT, PROVIDES ACCURATE HEAT CONTROL WITHINFINITE AMPERAGE CONTROL, HIGHIER DUTY CYCLE WHEN AMPERAGE DECREASES, AMPERAGE ADJUSTMENTS CAN BE MADE IN 1 AMP INCREMENTS, REPLACEABLE WELD CABLES, HEIGHT 18 3/4 INCH WIDTH 12 3/4 INCH DEPTH 17 1/2 INCH, NET WEIGHT IS 104 POUNDS (47KG) LBS. 2 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.