The Welding Machine,arc, cataloged under National Stock Number 3431-01-284-3113, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Hobart Bros Co. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3431-01-284-3113 |
| Primary Part Number | CT-300-DC-S |
| Item Name | Welding Machine,arc |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Manufacturer | Hobart Bros Co |
| Status | ACTIVE |
| Current Type | DC |
| Minimum Current at Specified Voltage | 5.8 AMP AT 200 V V |
| Arc Current Type | DC |
| Design Type | GENERATOR |
| Output Current Rating in Amps | 300.0 NOMINAL |
| Power Source | ELECTRIC MOTOR |
| Voltage in Volts | 230.0 OR 460.0 |
| Maximum Current at Specified Voltage | 300 AMP AT 575 V V |
| 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 |
| Part Number | Manufacturer |
|---|---|
| SPEC6102-1 | Hobart Bros Co (USA) |
| CT-300-DC-S PRIMARY | Hobart Bros Co (USA) |
| Reference | Meaning |
|---|---|
| 6102-1 | 5/9 Secondary reference Hobart Bros Co |
NSN 3431-01-284-3113 is a Welding Machine,arc, manufactured by Hobart Bros Co, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
NSN 3431-01-284-3113 has 2 manufacturer part numbers on file: SPEC6102-1 (Hobart Bros Co), CT-300-DC-S (Hobart Bros Co).
1 possible match (shared part number, not a government interchangeability claim): 1377-01-286-3723. Verify interchangeability with system specifications before substitution.
Key specifications for CT-300-DC-S: Current Type: DC; Minimum Current at Specified Voltage: 5.8 AMP AT 200 V V; Arc Current Type: DC; Design Type: GENERATOR. 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.