The Solder,tin Alloy, cataloged under National Stock Number 3439-01-345-8159, 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 4 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3439-01-345-8159 |
| Item Name | Solder,tin Alloy |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Status | ACTIVE |
| Length | 13.500 INCHES NOMINAL IN |
| Width | 0.750 INCHES NOMINAL IN |
| Chemical Composition Percentage | TIN 63,LEAD 37 |
| Thickness | 0.375 INCHES NOMINAL IN |
| 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 |
|---|---|
| SN63BS | 3/1 Design control — primary reference U.S. Government activity |
| ASTM B32 | 5/1 Secondary reference U.S. Government activity |
| QQ-S-571 | 5/9 Secondary reference U.S. Government activity |
| SN63PB37BS | 5/9 Secondary reference U.S. Government activity |
| S-N-63BS | 5/9 Secondary reference U.S. Government activity |
NSN 3439-01-345-8159 is a Solder,tin Alloy, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3439-01-371-6859, 3439-01-418-6103. Verify interchangeability with system specifications before substitution.
Key specifications for 3439-01-345-8159: Length: 13.500 INCHES NOMINAL IN; Width: 0.750 INCHES NOMINAL IN; Chemical Composition Percentage: TIN 63,LEAD 37; Thickness: 0.375 INCHES NOMINAL IN. 4 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.