The Welding Machine,arc, cataloged under National Stock Number 3431-01-251-8554, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3431-01-251-8554 |
| Item Name | Welding Machine,arc |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Status | ACTIVE |
| Rotational Speed Rating in RPM | 1800.0 |
| Minimum Current at Specified Voltage | 45 AMP AT 95 V V |
| Output Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM |
| Arc Current Type | DC |
| Design Type | GENERATOR |
| Horsepower Rating | 36.0 |
| Output Current Rating in Amps | 300.0 NOMINAL |
| Power Output Rating | 3.0 KILOWATTS |
| Power Source | GASOLINE ENGINE |
| Output Voltage Rating in Volts | 120.0 MINIMUM AND 240.0 MAXIMUM |
| Output Current Type | AC |
| Maximum Current at Specified Voltage | 400 AMP AT 55 V V |
| Engine Manufacturer Identifying Number | F163 |
| Output Phase | SINGLE |
| Engine Manufacturer Name | TELEDYNE CONTINENTAL |
| 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 |
| Reference | Meaning |
|---|---|
| 903 043 | 3/9 Design control — primary reference Miller Electric Mfg. Co. |
| BIG-40 G | 5/9 Secondary reference Miller Electric Mfg. Co. |
| 903 043 | C/1 Advisory reference — outside the item-of-supply concept Miller Electric Mfg. Llc |
| BIG-40 G | C/1 Advisory reference — outside the item-of-supply concept Miller Electric Mfg. Llc |
NSN 3431-01-251-8554 is a Welding Machine,arc, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5995-01-252-9348. Verify interchangeability with system specifications before substitution.
Key specifications for 3431-01-251-8554: Rotational Speed Rating in RPM: 1800.0; Minimum Current at Specified Voltage: 45 AMP AT 95 V V; Output Frequency Rating: 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM; Arc Current Type: DC. 16 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.