The Solder,lead Alloy, cataloged under National Stock Number 3439-00-247-6921, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is American Society for Testing and Materials Dba Astm International. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3439-00-247-6921 |
| Primary Part Number | SN40BS |
| Item Name | Solder,lead Alloy |
| FSC / FSG | 3439 / 34 — No Item Name Available |
| Manufacturer | American Society for Testing and Materials Dba Astm International |
| Status | CANCELLED |
| Thickness | 0.375 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | SN 40 COMPOSITION AND B FORM AND S TYPE |
| 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 |
| Content Within Each Unit Package | 1 POUND LBS |
| Width | 0.625 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Length | 13.500 INCHES NOMINAL IN |
| Physical Form | BAR |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| ASTM B32 | American Society for Testing and Materials Dba Astm International (USA) |
| SN40BS | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| M33 | Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA) |
| SN40PB60BS | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| QQS571 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| SN40BS PRIMARY | American Society for Testing and Materials Dba Astm International (USA) |
NSN 3439-00-247-6921 is a Solder,lead Alloy, manufactured by American Society for Testing and Materials Dba Astm International, classified under FSC 3439 (No Item Name Available). Status: cancelled.
NSN 3439-00-247-6921 has 6 cross-referenced part numbers: ASTM B32 (American Society for Testing and Materials Dba Astm International), SN40BS (Federal Specifications Promulgated by General Services Administration Washington DC), M33 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), SN40PB60BS (Federal Specifications Promulgated by General Services Administration Washington DC), QQS571 (Federal Specifications Promulgated by General Services Administration Washington DC) and 1 more.
There are 4 known substitutes for 3439-00-247-6921: 3455-00-224-3660, 5910-00-636-2075, 5950-00-787-8615 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for SN40BS: Thickness: 0.375 INCHES NOMINAL IN; Nondefinitive Spec/std Data: SN 40 COMPOSITION AND B FORM AND S TYPE; 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; Content Within Each Unit Package: 1 POUND LBS. 7 total characteristics are documented in the Federal Logistics Information System.
NSN 3439-00-247-6921 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.