The Solder,lead Alloy, cataloged under National Stock Number 3439-01-258-5345, 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 Hi-Grade Alloy Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Solder,lead Alloy |
| FSC / FSG | 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories (FSG 34) |
| Manufacturers | Hi-Grade Alloy Corporation (CAGE 0B7S5) |
| Parameter | Value |
|---|---|
| NSN | 3439-01-258-5345 |
| Primary Part Number | 721759 |
| Item Name | Solder,lead Alloy |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Manufacturer | Hi-Grade Alloy Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Part Number | Manufacturer |
|---|---|
| 721759 PRIMARY | Hi-Grade Alloy Corporation (USA) |
| Reference | Meaning |
|---|---|
| 721759 | 5/9 Secondary reference U.S. Government activity |
NSN 3439-01-258-5345 is a Solder,lead Alloy, manufactured by Hi-Grade Alloy Corporation, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
NSN 3439-01-258-5345 has 1 manufacturer part number on file: 721759 (Hi-Grade Alloy Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-647-2096. Verify interchangeability with system specifications before substitution.
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.