The Welding Machine,arc, cataloged under National Stock Number 3431-01-437-0509, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3431-01-437-0509 |
| Primary Part Number | 131-785 |
| 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 | DC |
| Arc Current Type | DC |
| Design Type | RECTIFIER |
| Power Source | ELECTRIC MOTOR |
| Voltage in Volts | 115.0 |
| 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 |
|---|---|
| S-62DV | Miller Electric Mfg. Llc (USA) |
| 131-785 PRIMARY | Miller Electric Mfg. Llc (USA) |
| Reference | Meaning |
|---|---|
| 131-785-02-26 | 5/9 Secondary reference Miller Electric Mfg. Co. |
| S-62DV | 5/9 Secondary reference Miller Electric Mfg. Co. |
| 131-785 | 3/9 Design control — primary reference Miller Electric Mfg. Co. |
NSN 3431-01-437-0509 is a Welding Machine,arc, manufactured by Miller Electric Mfg. Llc, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
NSN 3431-01-437-0509 has 2 manufacturer part numbers on file: S-62DV (Miller Electric Mfg. Llc), 131-785 (Miller Electric Mfg. Llc).
1 possible match (shared part number, not a government interchangeability claim): 5315-01-605-9106. Verify interchangeability with system specifications before substitution.
Key specifications for 131-785: Phase: SINGLE; Frequency in Hertz: 60.0; Current Type: DC; Arc Current Type: DC. 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.