The Torch,welding,gas Shielded Arc, cataloged under National Stock Number 3431-01-045-7971, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3431-01-045-7971 |
| Primary Part Number | A-A-51187-B1A250 |
| Item Name | Torch,welding,gas Shielded Arc |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Continuous Current Rating in Amps | 240.0 |
| Length | 25.000 FEET NOMINAL FT |
| Electrode Diameter for Which Designed | 0.020 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Reversible Head Angle | NOT INCLUDED |
| Conveying Component | CABLE AND HOSE |
| Cooling Medium | WATER |
| 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 |
|---|---|
| A-A-51187-B1A250 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| 948085 | C/1 Advisory reference — outside the item-of-supply concept Union Carbide Corp Sub of Dow Co the |
| WN-20-25 | 5/9 Secondary reference Welding Nozzle Intl Inc |
| 948085 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 41V54 | 5/9 Secondary reference Union Carbide Corp Battery Products Div |
| 20-25 | 5/9 Secondary reference Cni Ceramic Nozzles Inc Dba Cni |
| A-A-51187B | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| 948085 | 5/9 Secondary reference Union Carbide Corp Battery Products Div |
| HP20-25 | 5/9 Secondary reference Weldcraft Customer Service |
| SW-2025 | 5/9 Secondary reference Standard Welders Equipment Corporation |
NSN 3431-01-045-7971 is a Torch,welding,gas Shielded Arc, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
NSN 3431-01-045-7971 has 1 manufacturer part number on file: A-A-51187-B1A250 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
Key specifications for A-A-51187-B1A250: Continuous Current Rating in Amps: 240.0; Length: 25.000 FEET NOMINAL FT; Electrode Diameter for Which Designed: 0.020 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN; Overall Length: 12.000 INCHES NOMINAL IN. 6 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.