The Rod,welding, cataloged under National Stock Number 3439-00-252-8354, 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 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 3439-00-252-8354 |
| Primary Part Number | AWSA5.27-78 RCUZN-B 0.156 |
| 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 | 0.50 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 | 37.00 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 | AWSA5.27,TY RCUZN-B ASSN STD SINGLE MATERIAL RESPONSE FILLER |
| Shape | ROUND |
| Outside Diameter | 0.156 INCHES NOMINAL IN |
| Process Type for Which Designed | OXYACETYLENE |
| Physical Form | STRAIGHT |
| Material | COPPER 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 |
|---|---|
| AWSA5.27-78 RCUZN-B 0.156 PRIMARY | American Welding Society, Inc. (USA) |
| Reference | Meaning |
|---|---|
| AWS A5.27 | 3/1 Design control — primary reference American Welding Society, Inc. |
NSN 3439-00-252-8354 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 3439-00-252-8354 has 1 manufacturer part number on file: AWSA5.27-78 RCUZN-B 0.156 (American Welding Society, Inc.).
6 possible matches (shared part number, not a government interchangeability claim): 3439-00-252-8357, 3439-00-255-7758, 3439-00-518-1914. Verify interchangeability with system specifications before substitution.
Key specifications for AWSA5.27-78 RCUZN-B 0.156: Length: 36.000 INCHES NOMINAL IN; 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. 13 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.