The Rod,welding, cataloged under National Stock Number 3439-00-288-5645, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3439-00-288-5645 |
| Primary Part Number | AWSA5.9-77 ER 309 0.062 |
| 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 | 0.12 CARBON NOMINAL SEVENTH ELEMENT |
| Filler Metal Chemical Composition in Percent | 0.65 SILICON NOMINAL SIXTH ELEMENT |
| Filler Metal Chemical Composition in Percent | 0.75 MOLYBDENUM NOMINAL FIFTH ELEMENT |
| Filler Metal Chemical Composition in Percent | 14.00 NICKEL NOMINAL THIRD ELEMENT |
| Filler Metal Chemical Composition in Percent | 2.50 MAGNESIUM NOMINAL FOURTH ELEMENT |
| Filler Metal Chemical Composition in Percent | 25.00 CHROMIUM NOMINAL SECOND ELEMENT |
| Filler Metal Chemical Composition in Percent | 55.00 IRON NOMINAL FIRST ELEMENT |
| Weld Position for Which Designed | ALL POSITIONS |
| Material Document and Classification | AWSA5.9-77; CL ER 309 ASSN STD SINGLE MATERIAL RESPONSE FILLER |
| Shape | ROUND |
| Outside Diameter | 0.062 INCHES NOMINAL IN |
| Process Type for Which Designed | GAS METAL ARC |
| Physical Form | STRAIGHT |
| Material | STEEL CORROSION RESISTING FILLER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AWSA5.9-77 ER 309 0.062 PRIMARY | American Welding Society, Inc. (USA) |
| Reference | Meaning |
|---|---|
| CL 2 0.062 | 5/9 Secondary reference U.S. Government activity |
| MIL-R-5031 | 5/9 Secondary reference U.S. Government activity |
| AWS A5.9 | 3/1 Design control — primary reference American Welding Society, Inc. |
NSN 3439-00-288-5645 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 3439-00-288-5645 has 1 manufacturer part number on file: AWSA5.9-77 ER 309 0.062 (American Welding Society, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 3439-00-393-0929, 3439-00-529-0743, 3439-00-540-2676. Verify interchangeability with system specifications before substitution.
Key specifications for AWSA5.9-77 ER 309 0.062: Length: 36.000 INCHES NOMINAL IN; Filler Metal Chemical Composition in Percent: 0.12 CARBON NOMINAL SEVENTH ELEMENT; Filler Metal Chemical Composition in Percent: 0.65 SILICON NOMINAL SIXTH ELEMENT; Filler Metal Chemical Composition in Percent: 0.75 MOLYBDENUM NOMINAL FIFTH 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.