PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SN63WSSolder,lead Alloy

American Society for Testing and Materials Dba Astm International · NSN 3439-01-074-5699 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-01-074-5699 — this item is cataloged by the U.S. Government under National Stock Number 3439-01-074-5699. Primary manufacturer part number: SN63WS.
Features
  • Solder,lead Alloy — FSC 3439
  • Content Within Each Unit Package: 1 LB LBS
  • Chemical Composition Percentage: TIN 63,LEAD 37
  • Nondefinitive Spec/std Data: A CLASS
  • Wire Core Type: SOLID
  • 5 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,lead Alloy, cataloged under National Stock Number 3439-01-074-5699, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-01-074-5699
Primary Part NumberSN63WS
Item NameSolder,lead Alloy
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
Content Within Each Unit Package1 LB LBS
Chemical Composition PercentageTIN 63,LEAD 37
Nondefinitive Spec/std DataA CLASS
Wire Core TypeSOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3439-00-198-3429SN63WS INTERCHANGEABLE
Solder,tin Alloy
American Society for Testing and Materials Dba Astm International
Cross-Reference Index
Part NumberManufacturer
QQ-S-571 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
ASTM B32 American Society for Testing and Materials Dba Astm International (USA)
QQ-S-571 CLA General Services Administration Federal Supply Service (USA)
63/37CORE32IN D IA 1 LB SPOOL Kester Inc (USA)
SN63WS PRIMARY American Society for Testing and Materials Dba Astm International (USA)
Related Parts
3439-00-198-3429INTERCHANGEABLE
SOLDER,TIN ALLOY
SN63WS

Frequently Asked Questions

What is NSN 3439-01-074-5699?

NSN 3439-01-074-5699 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: active.

What are the part numbers for NSN 3439-01-074-5699?

NSN 3439-01-074-5699 has 5 cross-referenced part numbers: QQ-S-571 (Federal Specifications Promulgated by General Services Administration Washington DC), ASTM B32 (American Society for Testing and Materials Dba Astm International), QQ-S-571 CLA (General Services Administration Federal Supply Service), 63/37CORE32IN D IA 1 LB SPOOL (Kester Inc), SN63WS (American Society for Testing and Materials Dba Astm International).

What NSN replaces 3439-01-074-5699?

There is 1 known substitute for 3439-01-074-5699: 3439-00-198-3429. Verify interchangeability with system specifications before substitution.

What are the specifications of SN63WS?

Key specifications for SN63WS: Content Within Each Unit Package: 1 LB LBS; Chemical Composition Percentage: TIN 63,LEAD 37; Nondefinitive Spec/std Data: A CLASS; Wire Core Type: SOLID. 4 total characteristics are documented in the Federal Logistics Information System.

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