The Solder,lead Alloy, cataloged under National Stock Number 3439-00-243-1888, 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 6 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3439-00-243-1888 |
| Item Name | Solder,lead Alloy |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Status | ACTIVE |
| Wire Core Type | ROSIN |
| Diameter | 0.063 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | SN40 COMPOSITION AND W FORM AND RFLUX TYPE AND +2 FLUX PERCENTAGE |
| Content Within Each Unit Package | 5 POUND LBS |
| Physical Form | WIRE |
| Chemical Composition Percentage | LEAD 57.54; TIN 41.5; ANTIMONY 0.5; BISMUTH 0.25; COPPER 0.08; OTHERS 0.08; ARSENIC 0.02; IRON 0.02; ALUMINUM 0.005; ZINC 0.005 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SN40WRP2 0.063 5LB | 5/9 Secondary reference U.S. Government activity |
| SN40PB60WRP2 0.063 5LB | 5/9 Secondary reference U.S. Government activity |
| QQS571 | 5/9 Secondary reference U.S. Government activity |
| SN40WRP2 0.063 5LB | 3/2 Design control — primary reference U.S. Government activity |
| SN40WRP2 0.063 5LB | 5/9 Secondary reference U.S. Government activity |
| ASTM B32 | 3/1 Design control — primary reference U.S. Government activity |
NSN 3439-00-243-1888 is a Solder,lead Alloy, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
Key specifications for 3439-00-243-1888: Wire Core Type: ROSIN; Diameter: 0.063 INCHES NOMINAL IN; Nondefinitive Spec/std Data: SN40 COMPOSITION AND W FORM AND RFLUX TYPE AND +2 FLUX PERCENTAGE; Content Within Each Unit Package: 5 POUND LBS. 6 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.