PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B32-04Solder,tin Alloy

American Society for Testing and Materials Dba Astm International · NSN 3439-00-437-6721 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-437-6721 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-437-6721. Primary manufacturer part number: ASTM B32-04.
Features
  • Solder,tin Alloy — FSC 3439
  • Diameter: 0.063 INCHES NOMINAL IN
  • Wire Core Type: ROSIN
  • Chemical Composition Percentage: TIN 61.5 PCT,LEAD 37.53 PCT,ANTIMONY 0.5 PCT,BISMUTH 0.25 PCT,COPPER 0.08 PCT,OTHER ELEMENTS 0.08 PCT,ARSENIC 0.03 PCT,IRON 0.02 PCT,ALUMINUM 0.005 PCT,ZINC 0.005 PCT
  • Content Within Each Unit Package: 1 LB LBS
  • Physical Form: WIRE
  • 10 verified cross-references
  • Primary manufacturer: American Society for Testing and Materials Dba Astm International
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Solder,tin Alloy, cataloged under National Stock Number 3439-00-437-6721, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3439-00-437-6721
Primary Part NumberASTM B32-04
Item NameSolder,tin Alloy
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusCANCELLED
Diameter0.063 INCHES NOMINAL IN
Wire Core TypeROSIN
Chemical Composition PercentageTIN 61.5 PCT,LEAD 37.53 PCT,ANTIMONY 0.5 PCT,BISMUTH 0.25 PCT,COPPER 0.08 PCT,OTHER ELEMENTS 0.08 PCT,ARSENIC 0.03 PCT,IRON 0.02 PCT,ALUMINUM 0.005 PCT,ZINC 0.005 PCT
Content Within Each Unit Package1 LB LBS
Physical FormWIRE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3439-00-095-3672 INTERCHANGEABLE
Solder,tin Alloy
3439-00-247-6969SN35IS 5LB INTERCHANGEABLE
Solder,lead Alloy
American Society for Testing and Materials Dba Astm International
3439-01-104-6430SN60WRMAP2 0.063 INTERCHANGEABLE
Solder,tin Alloy
American Society for Testing and Materials Dba Astm International
3439-01-406-2308AG1.5 WRMAP2 INTERCHANGEABLE
Solder,lead Alloy
American Society for Testing and Materials Dba Astm International
Cross-Reference Index
Part NumberManufacturer
SN60WRMAP2 0.063 1LB American Society for Testing and Materials Dba Astm International (USA)
SN60WRMAP2 0.063 1LB Federal Specifications Promulgated by General Services Administration Washington DC (USA)
ERSIN Multicore Solders (USA)
QQ-S-571 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
SN60PB40WRMAP2 0.063 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
511151-8 Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
ASTM B32-04 PRIMARY American Society for Testing and Materials Dba Astm International (USA)
ASTM B32-95 American Society for Testing and Materials Dba Astm International (USA)
ASTM B32 American Society for Testing and Materials Dba Astm International (USA)
3439004376721 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
Related Parts
3439-00-095-3672INTERCHANGEABLE
SOLDER,TIN ALLOY
3439-00-247-6969INTERCHANGEABLE
SOLDER,LEAD ALLOY
SN35IS 5LB
3439-01-104-6430INTERCHANGEABLE
SOLDER,TIN ALLOY
SN60WRMAP2 0.063
3439-01-406-2308INTERCHANGEABLE
SOLDER,LEAD ALLOY
AG1.5 WRMAP2

Frequently Asked Questions

What is NSN 3439-00-437-6721?

NSN 3439-00-437-6721 is a Solder,tin Alloy, manufactured by American Society for Testing and Materials Dba Astm International, classified under FSC 3439 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3439-00-437-6721?

NSN 3439-00-437-6721 has 10 cross-referenced part numbers: SN60WRMAP2 0.063 1LB (American Society for Testing and Materials Dba Astm International), SN60WRMAP2 0.063 1LB (Federal Specifications Promulgated by General Services Administration Washington DC), ERSIN (Multicore Solders), QQ-S-571 (Federal Specifications Promulgated by General Services Administration Washington DC), SN60PB40WRMAP2 0.063 (Federal Specifications Promulgated by General Services Administration Washington DC) and 5 more.

What NSN replaces 3439-00-437-6721?

There are 4 known substitutes for 3439-00-437-6721: 3439-00-095-3672, 3439-00-247-6969, 3439-01-104-6430 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B32-04?

Key specifications for ASTM B32-04: Diameter: 0.063 INCHES NOMINAL IN; Wire Core Type: ROSIN; Chemical Composition Percentage: TIN 61.5 PCT,LEAD 37.53 PCT,ANTIMONY 0.5 PCT,BISMUTH 0.25 PCT,COPPER 0.08 PCT,OTHER ELEMENTS 0.08 PCT,ARSENIC 0.03 PCT,IRON 0.02 PCT,ALUMINUM 0.005 PCT,ZINC 0.005 PCT; Content Within Each Unit Package: 1 LB LBS. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3439-00-437-6721 still in active supply?

NSN 3439-00-437-6721 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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