The Torch,welding,gas Shielded Arc, cataloged under National Stock Number 3431-00-528-8681, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3431-00-528-8681 |
| Item Name | Torch,welding,gas Shielded Arc |
| FSC / FSG | 3431 / 34 — Electric Arc Welding Equipment |
| Status | ACTIVE |
| Reversible Head Angle | NOT INCLUDED |
| 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 |
|---|---|
| HW9-16X47 | 5/9 Secondary reference L-Tec Welding and Cutting Systems |
| HW 90 | 3/2 Design control — primary reference U.S. Government activity |
| HW9 | 5/9 Secondary reference Union Carbide Corp Sub of Dow Co the |
| HW9 | 5/9 Secondary reference L-Tec Welding and Cutting Systems |
NSN 3431-00-528-8681 is a Torch,welding,gas Shielded Arc, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2520-01-574-0038. Verify interchangeability with system specifications before substitution.
Key specifications for 3431-00-528-8681: Overall Length: 10.500 INCHES NOMINAL IN; Reversible Head Angle: NOT INCLUDED. 1 specification is 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.