The Welding Machine,arc, cataloged under National Stock Number 3431-00-862-6669, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3431-00-862-6669 |
| Item Name | Welding Machine,arc |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Status | ACTIVE |
| Transformer Primary Voltage in Volts | 460.0 |
| Minimum Current at Specified Voltage | 4 AMP AT 40 V V |
| Arc Current Type | AC OR DC |
| Design Type | TRANSFORMER |
| Output Current Rating in Amps | 300.0 NOMINAL |
| Transformer Frequency in Hertz | 60.0 NOMINAL |
| Maximum Current at Specified Voltage | 390 AMP AT 30 V V |
| Mounting Type | BASE |
| Transformer Phase | SINGLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| MILW45807 | 4/1 Identification reference U.S. Government activity |
| 425 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3431-00-862-6669 is a Welding Machine,arc, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3431-00-862-6670, 3431-00-984-3401. Verify interchangeability with system specifications before substitution.
Key specifications for 3431-00-862-6669: Transformer Primary Voltage in Volts: 460.0; Minimum Current at Specified Voltage: 4 AMP AT 40 V V; Arc Current Type: AC OR DC; Design Type: TRANSFORMER. 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.