PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

QQ-S-571Solder,tin Alloy

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 3439-01-128-0419 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-01-128-0419 — this item is cataloged by the U.S. Government under National Stock Number 3439-01-128-0419. Primary manufacturer part number: QQ-S-571.
Features
  • Solder,tin Alloy — FSC 3439
  • Content Within Each Unit Package: 1 LB LBS
  • Physical Form: WIRE
  • Chemical Composition Percentage: TIN 61.5,LEAD 37.53,ANTIMONY 0.5,BISMUTH 0.025,COPPER 0.08,OTHER 0.08,ARSENIC 0.03,IRON 0.02,ALUMINUM 0.005,ZINC 0.005
  • Wire Core Type: ROSIN
  • Diameter: 0.050 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Solder,tin Alloy, cataloged under National Stock Number 3439-01-128-0419, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-01-128-0419
Primary Part NumberQQ-S-571
Item NameSolder,tin Alloy
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Content Within Each Unit Package1 LB LBS
Physical FormWIRE
Chemical Composition PercentageTIN 61.5,LEAD 37.53,ANTIMONY 0.5,BISMUTH 0.025,COPPER 0.08,OTHER 0.08,ARSENIC 0.03,IRON 0.02,ALUMINUM 0.005,ZINC 0.005
Wire Core TypeROSIN
Diameter0.050 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3439-00-273-2536SN60WRP2 0.125 1LB INTERCHANGEABLE
Solder,tin Alloy
American Society for Testing and Materials Dba Astm International
3439-00-974-1873SN60WRAP2 INTERCHANGEABLE
Solder,tin Alloy
American Society for Testing and Materials Dba Astm International
Cross-Reference Index
Part NumberManufacturer
QQ-S-571 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SN60WRAP2-0.050-1LB Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
QQ-S-571ESN60WRAP20-05IN Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SN60WRAP2 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
3439-00-273-2536INTERCHANGEABLE
SOLDER,TIN ALLOY
SN60WRP2 0.125 1LB
3439-00-974-1873INTERCHANGEABLE
SOLDER,TIN ALLOY
SN60WRAP2

Frequently Asked Questions

What is NSN 3439-01-128-0419?

NSN 3439-01-128-0419 is a Solder,tin Alloy, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-01-128-0419?

NSN 3439-01-128-0419 has 4 cross-referenced part numbers: QQ-S-571 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), SN60WRAP2-0.050-1LB (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), QQ-S-571ESN60WRAP20-05IN (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), SN60WRAP2 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 3439-01-128-0419?

There are 2 known substitutes for 3439-01-128-0419: 3439-00-273-2536, 3439-00-974-1873. Verify interchangeability with system specifications before substitution.

What are the specifications of QQ-S-571?

Key specifications for QQ-S-571: Content Within Each Unit Package: 1 LB LBS; Physical Form: WIRE; Chemical Composition Percentage: TIN 61.5,LEAD 37.53,ANTIMONY 0.5,BISMUTH 0.025,COPPER 0.08,OTHER 0.08,ARSENIC 0.03,IRON 0.02,ALUMINUM 0.005,ZINC 0.005; Wire Core Type: ROSIN. 5 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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