The Welding Machine,arc, cataloged under National Stock Number 3431-01-384-5273, 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 14 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3431-01-384-5273 |
| Primary Part Number | 951000004 |
| Item Name | Welding Machine,arc |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Manufacturer | Miller Electric Mfg. Llc |
| Status | ACTIVE |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Current Type | AC OR DC |
| Minimum Current at Specified Voltage | 300 AMP AT 32 V V |
| Output Frequency Rating | 60.0 HERTZ NOMINAL |
| Arc Current Type | AC OR DC |
| Design Type | RECTIFIER |
| Output Current Rating in Amps | 350.0 NOMINAL |
| Voltage in Volts | 230.0 OR 460.0 |
| Output Voltage Rating in Volts | 115.0 NOMINAL |
| Output Current Type | AC |
| Maximum Current at Specified Voltage | 350 AMP AT 34 V V |
| Output Phase | SINGLE |
| Mounting Type | BASE |
| 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 |
|---|---|
| 951000004 PRIMARY | Miller Electric Mfg. Llc (USA) |
| Reference | Meaning |
|---|---|
| 907198-04-1 | 5/9 Secondary reference Miller Electric Mfg. Co. |
| 951831 | 5/9 Secondary reference Miller Electric Mfg. Llc |
| 907-198-031 | 5/9 Secondary reference Miller Electric Mfg. Co. |
| 903219 | 5/9 Secondary reference Miller Electric Mfg. Co. |
| SYNCROWAVE 351 | 5/9 Secondary reference Miller Electric Mfg. Co. |
| 951119 SYNCROWAVE 350 LX COMPLET | 5/9 Secondary reference Miller Electric Mfg. Co. |
| 951622 | 3/9 Design control — primary reference Miller Electric Mfg. Co. |
| 951622 | 5/9 Secondary reference Miller Electric Mfg. Llc |
NSN 3431-01-384-5273 is a Welding Machine,arc, manufactured by Miller Electric Mfg. Llc, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
NSN 3431-01-384-5273 has 1 manufacturer part number on file: 951000004 (Miller Electric Mfg. Llc).
1 possible match (shared part number, not a government interchangeability claim): 3431-01-389-2866. Verify interchangeability with system specifications before substitution.
Key specifications for 951000004: Phase: SINGLE; Frequency in Hertz: 60.0; Current Type: AC OR DC; Minimum Current at Specified Voltage: 300 AMP AT 32 V V. 14 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.