The Solder,tin Alloy, cataloged under National Stock Number 3439-01-345-2850, 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 5 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3439-01-345-2850 |
| Item Name | Solder,tin Alloy |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Status | ACTIVE |
| Wire Core Type | ROSIN |
| Diameter | 0.020 INCHES NOMINAL IN |
| Content Within Each Unit Package | 5 LB LBS |
| Physical Form | WIRE |
| Chemical Composition Percentage | TIN 61.5; LEAD 37.53; ANTIMONY 0.50; BISMUTH 0.25; COPPER 0.08; IRON 0.02; ZINC 0.005; ALUMINUM 0.005; ARSENIC 0.03; OTHERS 0.08 |
| 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 |
|---|---|
| ASTM B32 | 3/1 Design control — primary reference U.S. Government activity |
| SN60WRMAP3 0.020 5LB | 5/9 Secondary reference U.S. Government activity |
| QQ-S-571 | 5/9 Secondary reference U.S. Government activity |
| SN60PB40WRMAP3 0.020 5LB | 5/9 Secondary reference U.S. Government activity |
| SN60WRMAP3 0.020 5LB | 3/2 Design control — primary reference U.S. Government activity |
NSN 3439-01-345-2850 is a Solder,tin Alloy, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
Key specifications for 3439-01-345-2850: Wire Core Type: ROSIN; Diameter: 0.020 INCHES NOMINAL IN; Content Within Each Unit Package: 5 LB LBS; Physical Form: WIRE. 5 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.