The Solder,lead Alloy, cataloged under National Stock Number 3439-00-247-6972, 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3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3439-00-247-6972 |
| Item Name | Solder,lead Alloy |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Status | ACTIVE |
| Content Within Each Unit Package | 5 POUND LBS |
| Physical Form | BAR |
| Chemical Composition Percentage | LEAD 59.54 PCT,TIN 41.5 PCT,ANTIMONY 0.5 PCT,BISMUTH 0.25 PCT,COPPER 0.08 PCT,OTHER ELEMENTS 0.08 PCT,ARSENIC 0.02 PCT,IRON 0.02 PCT,ALUMINUM 0.005 PCT,ZINC 0.005 PCT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SN40BS 5LB | 2/2 Government specification standardization U.S. Government activity |
| QQ-S-571 | 4/1 Identification reference U.S. Government activity |
NSN 3439-00-247-6972 is a Solder,lead Alloy, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
Key specifications for 3439-00-247-6972: Content Within Each Unit Package: 5 POUND LBS; Physical Form: BAR; Chemical Composition Percentage: LEAD 59.54 PCT,TIN 41.5 PCT,ANTIMONY 0.5 PCT,BISMUTH 0.25 PCT,COPPER 0.08 PCT,OTHER ELEMENTS 0.08 PCT,ARSENIC 0.02 PCT,IRON 0.02 PCT,ALUMINUM 0.005 PCT,ZINC 0.005 PCT. 3 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.