The Rod,welding, cataloged under National Stock Number 3439-00-252-8357, is classified within Federal Supply Class 3439 (Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories) of the Metalworking Machinery (continued) group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3439-00-252-8357 |
| Item Name | Rod,welding |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Status | CANCELLED |
| Length | 36.000 INCHES NOMINAL IN |
| Unit Package Type | CAN |
| Filler Metal Chemical Composition in Percent | 0.15 SILICON NOMINAL SIXTH ELEMENT |
| Filler Metal Chemical Composition in Percent | 0.50 MAGNESIUM NOMINAL FIFTH ELEMENT |
| Filler Metal Chemical Composition in Percent | 0.80 NICKEL NOMINAL FOURTH ELEMENT |
| Filler Metal Chemical Composition in Percent | 1.20 IRON NOMINAL THIRD ELEMENT |
| Filler Metal Chemical Composition in Percent | 36.00 ZINC NOMINAL SECOND ELEMENT |
| Filler Metal Chemical Composition in Percent | 60.00 COPPER NOMINAL FIRST ELEMENT |
| Weld Position for Which Designed | ALL POSITIONS |
| Material Document and Classification | QQ-R-571,CL RCUZN-B FED SPEC SINGLE MATERIAL RESPONSE FILLER |
| Shape | ROUND |
| Outside Diameter | 0.250 INCHES NOMINAL IN |
| Quantity Within Each Unit Package | 5.000 POUNDS LBS |
| Process Type for Which Designed | OXYACETYLENE |
| Physical Form | STRAIGHT |
| Material | COPPER ALLOY FILLER |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| RCUZN-B 0.250 | 5/9 Secondary reference U.S. Government activity |
| QQ-R-571 | 5/9 Secondary reference U.S. Government activity |
| AWS A5.27 | 3/1 Design control — primary reference American Welding Society, Inc. |
NSN 3439-00-252-8357 is a Rod,welding, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: cancelled.
4 possible matches (shared part number, not a government interchangeability claim): 3439-00-254-5033, 3439-00-255-7757, 3439-00-255-7758. Verify interchangeability with system specifications before substitution.
Key specifications for 3439-00-252-8357: Length: 36.000 INCHES NOMINAL IN; Unit Package Type: CAN; Filler Metal Chemical Composition in Percent: 0.15 SILICON NOMINAL SIXTH ELEMENT; Filler Metal Chemical Composition in Percent: 0.50 MAGNESIUM NOMINAL FIFTH ELEMENT. 16 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.
NSN 3439-00-252-8357 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.