PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3100Solder,lead-Tin Alloy

Alter Harry Co the Div of T E C · NSN 3439-00-239-8505 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-239-8505 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-239-8505. Primary manufacturer part number: 3100.
Features
  • Solder,lead-Tin Alloy — FSC 3439
  • Chemical Composition Percentage: TIN 51.5; LEAD 47.535; ANTIMONY 0.5; BISMUTH 0.25; COPPER 0.08; OTHERS 0.08; ARSENIC 0.025; IRON 0.02; ALUMINUM 0.005; ZINC 0.005
  • Physical Form: WIRE
  • Nondefinitive Spec/std Data: SN50 COMPOSITION AND W FORM AND S TYPE
  • Wire Core Type: SOLID
  • Content Within Each Unit Package: 1 LB LBS
  • Diameter: 0.125 INCHES NOMINAL IN
  • 7 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Solder,lead-Tin Alloy, cataloged under National Stock Number 3439-00-239-8505, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Alter Harry Co the Div of T E C. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3439-00-239-8505
Primary Part Number3100
Item NameSolder,lead-Tin Alloy
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerAlter Harry Co the Div of T E C
StatusCANCELLED
Chemical Composition PercentageTIN 51.5; LEAD 47.535; ANTIMONY 0.5; BISMUTH 0.25; COPPER 0.08; OTHERS 0.08; ARSENIC 0.025; IRON 0.02; ALUMINUM 0.005; ZINC 0.005
Physical FormWIRE
Nondefinitive Spec/std DataSN50 COMPOSITION AND W FORM AND S TYPE
Wire Core TypeSOLID
Content Within Each Unit Package1 LB LBS
Diameter0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5330-01-253-659256160 INTERCHANGEABLE
Seal,plain
Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
5950-01-253-810556160 INTERCHANGEABLE
Coil,electrical
Getinge Usa Inc
Cross-Reference Index
Part NumberManufacturer
3100 PRIMARY Alter Harry Co the Div of T E C (USA)
QQ-S-571 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
SN50WS 0.125 1LB American Society for Testing and Materials Dba Astm International (USA)
ASTM B32 American Society for Testing and Materials Dba Astm International (USA)
SN50PB50WS 0.125 1LB Federal Specifications Promulgated by General Services Administration Washington DC (USA)
SN50WS 0.125 1LB Federal Specifications Promulgated by General Services Administration Washington DC (USA)
56160 Borg Instruments Inc (USA)
Related Parts
5330-01-253-6592INTERCHANGEABLE
SEAL,PLAIN
56160
5950-01-253-8105INTERCHANGEABLE
COIL,ELECTRICAL
56160

Frequently Asked Questions

What is NSN 3439-00-239-8505?

NSN 3439-00-239-8505 is a Solder,lead-Tin Alloy, manufactured by Alter Harry Co the Div of T E C, classified under FSC 3439 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3439-00-239-8505?

NSN 3439-00-239-8505 has 7 cross-referenced part numbers: 3100 (Alter Harry Co the Div of T E C), QQ-S-571 (Federal Specifications Promulgated by General Services Administration Washington DC), SN50WS 0.125 1LB (American Society for Testing and Materials Dba Astm International), ASTM B32 (American Society for Testing and Materials Dba Astm International), SN50PB50WS 0.125 1LB (Federal Specifications Promulgated by General Services Administration Washington DC) and 2 more.

What NSN replaces 3439-00-239-8505?

There are 2 known substitutes for 3439-00-239-8505: 5330-01-253-6592, 5950-01-253-8105. Verify interchangeability with system specifications before substitution.

What are the specifications of 3100?

Key specifications for 3100: Chemical Composition Percentage: TIN 51.5; LEAD 47.535; ANTIMONY 0.5; BISMUTH 0.25; COPPER 0.08; OTHERS 0.08; ARSENIC 0.025; IRON 0.02; ALUMINUM 0.005; ZINC 0.005; Physical Form: WIRE; Nondefinitive Spec/std Data: SN50 COMPOSITION AND W FORM AND S TYPE; Wire Core Type: SOLID. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3439-00-239-8505 still in active supply?

NSN 3439-00-239-8505 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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