The Welding Machine,arc, cataloged under National Stock Number 3431-00-275-7906, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3431-00-275-7906 |
| Item Name | Welding Machine,arc |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Status | ACTIVE |
| Minimum Current at Specified Voltage | 30 AMP AT 40V V |
| Arc Current Type | DC |
| Design Type | GENERATOR |
| Output Current Rating in Amps | 300.0 NOMINAL |
| Power Source | GASOLINE ENGINE |
| Maximum Current at Specified Voltage | 375 AMP AT 40V V |
| Engine Manufacturer Identifying Number | ANY ACCEPTABLE |
| Engine Manufacturer Name | ANY ACCEPTABLE |
| Mounting Type | BASE |
| Reference Number Differentiating Characteristics | ATJL,AYHQ |
| 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 |
|---|---|
| WN300 | 3/1 Design control — primary reference Morris Material Handling, Inc. |
| WF300 | 5/1 Secondary reference Morris Material Handling, Inc. |
NSN 3431-00-275-7906 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): 3431-00-360-2785, 5905-00-995-7920. Verify interchangeability with system specifications before substitution.
Key specifications for 3431-00-275-7906: Minimum Current at Specified Voltage: 30 AMP AT 40V V; Arc Current Type: DC; Design Type: GENERATOR; Output Current Rating in Amps: 300.0 NOMINAL. 10 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.