The Welding Machine,arc, cataloged under National Stock Number 3431-01-436-2756, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Miller Electric Mfg. Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3431-01-436-2756 |
| Primary Part Number | INTELLIFIRE 250 |
| Item Name | Welding Machine,arc |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Manufacturer | Miller Electric Mfg. Llc |
| Status | ACTIVE |
| Phase | THREE |
| Frequency in Hertz | 60.0 |
| Current Type | AC |
| Arc Current Type | AC |
| Design Type | RECTIFIER |
| Output Current Rating in Amps | 450.0 NOMINAL |
| Voltage in Volts | 115.0 OR 460.0 |
| 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 |
|---|---|
| INTELLIFIRE 250 PRIMARY | Miller Electric Mfg. Llc (USA) |
| Reference | Meaning |
|---|---|
| AP3000-450 | 5/9 Secondary reference Reliant Heating and Controls Inc |
| INTELLIFIRE 250 | 3/9 Design control — primary reference Miller Electric Mfg. Co. |
NSN 3431-01-436-2756 is a Welding Machine,arc, manufactured by Miller Electric Mfg. Llc, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
NSN 3431-01-436-2756 has 1 manufacturer part number on file: INTELLIFIRE 250 (Miller Electric Mfg. Llc).
Key specifications for INTELLIFIRE 250: Phase: THREE; Frequency in Hertz: 60.0; Current Type: AC; Arc Current Type: AC. 7 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.