The Brazing Alloy,silver, cataloged under National Stock Number 3439-01-448-5603, 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 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3439-01-448-5603 |
| Item Name | Brazing Alloy,silver |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Status | ACTIVE |
| Diameter | 0.125 INCHES NOMINAL IN |
| Physical Form | WIRE |
| Chemical Composition Percentage | COPPER 39;ZINC 34;SILVER 31;OTHER 0.15 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| GE B20A4-87 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3439-01-448-5603 is a Brazing Alloy,silver, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
Key specifications for 3439-01-448-5603: Diameter: 0.125 INCHES NOMINAL IN; Physical Form: WIRE; Special Features: 500 TROY OZ COIL 16 TO 22IN DIA COLD DRAWN TO SIZE CROSS SECTION DIA. TOLERANCE =/-(0.0005) IN; Chemical Composition Percentage: COPPER 39;ZINC 34;SILVER 31;OTHER 0.15. 3 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.