The Rod,welding, cataloged under National Stock Number 3439-00-246-0541, is classified within Federal Supply Class 3439 (Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories) of the Metalworking Machinery (continued) group. The manufacturer of record is American Welding Society, Inc.. Government technical data includes 15 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 3439-00-246-0541 |
| Primary Part Number | AWSA5.10-69 ER4043 0.188 |
| Item Name | Rod,welding |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Manufacturer | American Welding Society, Inc. |
| Status | ACTIVE |
| Length | 36.000 INCHES NOMINAL IN |
| Filler Metal Chemical Composition in Percent | 0.05 MAGNESIUM NOMINAL FIFTH ELEMENT |
| Filler Metal Chemical Composition in Percent | 0.05 MANGANESE NOMINAL SIXTH ELEMENT |
| Filler Metal Chemical Composition in Percent | 0.30 COPPER NOMINAL FOURTH ELEMENT |
| Filler Metal Chemical Composition in Percent | 0.80 IRON NOMINAL THIRD ELEMENT |
| Filler Metal Chemical Composition in Percent | 6.00 SILICON NOMINAL SECOND ELEMENT |
| Filler Metal Chemical Composition in Percent | 92.00 ALUMINUM NOMINAL FIRST ELEMENT |
| Weld Position for Which Designed | ALL POSITIONS |
| Material Document and Classification | AWSA5.10-69 ER4043 0.188 ASSN STD SINGLE MATERIAL RESPONSE FILLER |
| Shape | ROUND |
| Outside Diameter | 0.188 INCHES NOMINAL IN |
| Specification/standard Data | 31505-AWSA5.10-69 ER4043 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Process Type for Which Designed | OXYACETYLENE |
| Physical Form | STRAIGHT |
| Material | ALUMINUM ALLOY FILLER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AWSA5.10-69 ER4043 0.188 PRIMARY | American Welding Society, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4043 | 5/1 Secondary reference Hobart Bros Co |
| A4043 | 5/9 Secondary reference Airco Welding Products Div of the Boc Group Inc |
| 4043 | 5/1 Secondary reference Union Carbide Corp Sub of Dow Co the |
| AWS A5.10/A5.10M | 3/1 Design control — primary reference American Welding Society, Inc. |
| 4043 | 5/9 Secondary reference Central Wire Industries Ltd |
| RACO AL-43 | 3/1 Design control — primary reference Central Wire Industries Ltd |
| 4043 | 5/9 Secondary reference Liquid Carbonic Corp |
NSN 3439-00-246-0541 is a Rod,welding, manufactured by American Welding Society, Inc., classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
NSN 3439-00-246-0541 has 1 manufacturer part number on file: AWSA5.10-69 ER4043 0.188 (American Welding Society, Inc.).
7 possible matches (shared part number, not a government interchangeability claim): 3439-00-268-9654, 3439-00-501-7496, 3439-00-542-0752. Verify interchangeability with system specifications before substitution.
Key specifications for AWSA5.10-69 ER4043 0.188: Length: 36.000 INCHES NOMINAL IN; Filler Metal Chemical Composition in Percent: 0.05 MAGNESIUM NOMINAL FIFTH ELEMENT; Filler Metal Chemical Composition in Percent: 0.05 MANGANESE NOMINAL SIXTH ELEMENT; Filler Metal Chemical Composition in Percent: 0.30 COPPER NOMINAL FOURTH ELEMENT. 15 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.