PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SB5WS 0.125 1LBSolder,tin Alloy

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 3439-00-254-8438 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-254-8438 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-254-8438. Primary manufacturer part number: SB5WS 0.125 1LB.
Features
  • Solder,tin Alloy — FSC 3439
  • Wire Core Type: SOLID
  • Physical Form: WIRE
  • Chemical Composition Percentage: TIN 94.0 PCT,ANTIMONY 6.0 PCT,LEAD 0.2 PCT,COPPER 0.08 PCT,IRON 0.08 PCT,ARSENIC 0.05 PCT,ALUMINUM 0.03 PCT,OTHER ELEMENTS 0.03 PCT,ZINC 0.03 PCT,CADMIUM 0.001 PCT
  • Nondefinitive Spec/std Data: SB5 COMPOSITION AND W FORM AND S TYPE
  • Content Within Each Unit Package: 1 LB PORM 1 OZ LBS
  • Diameter: 0.125 INCHES NOMINAL IN
  • 3 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Solder,tin Alloy, cataloged under National Stock Number 3439-00-254-8438, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3439-00-254-8438
Primary Part NumberSB5WS 0.125 1LB
Item NameSolder,tin Alloy
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Wire Core TypeSOLID
Physical FormWIRE
Chemical Composition PercentageTIN 94.0 PCT,ANTIMONY 6.0 PCT,LEAD 0.2 PCT,COPPER 0.08 PCT,IRON 0.08 PCT,ARSENIC 0.05 PCT,ALUMINUM 0.03 PCT,OTHER ELEMENTS 0.03 PCT,ZINC 0.03 PCT,CADMIUM 0.001 PCT
Nondefinitive Spec/std DataSB5 COMPOSITION AND W FORM AND S TYPE
Content Within Each Unit Package1 LB PORM 1 OZ LBS
Diameter0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-042-1721 INTERCHANGEABLE
Screw,machine
3110-00-156-1885 INTERCHANGEABLE
Bearing,ball,thrust
5331-00-167-5174M83248/2-910 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
6810-00-234-8378 INTERCHANGEABLE
Sodium Sulfide,nonahydrate
4320-00-417-9584 INTERCHANGEABLE
Impeller,pump,centrifugal
6636-00-480-649331295 INTERCHANGEABLE
Chamber,environmental Testing
Precision Scientific Petroleum Instruments Co
5330-00-485-35862CT976 INTERCHANGEABLE
Packing,preformed
Oshkosh Defense Llc
2930-00-776-0491308435C1 INTERCHANGEABLE
Spring Thermostat
Navistar Intl Corp Truck Br Ohio Plant
5905-00-831-8465995-2A47R0 INTERCHANGEABLE
Resistor,fixed,wire Wound,nonind
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
3424-01-044-54453910 INTERCHANGEABLE
Furnace,heat Treating,gas Burnin
Ajax Electric Co
Cross-Reference Index
Part NumberManufacturer
SB5WS 0.125 1LB Federal Specifications Promulgated by General Services Administration Washington DC (USA)
3910 Kennecott Corp Chase Extrusions Div (USA)
QQ-S-571 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5305-00-042-1721INTERCHANGEABLE
SCREW,MACHINE
3110-00-156-1885INTERCHANGEABLE
BEARING,BALL,THRUST
5331-00-167-5174INTERCHANGEABLE
O-RING
M83248/2-910
6810-00-234-8378INTERCHANGEABLE
SODIUM SULFIDE,NONAHYDRATE
4320-00-417-9584INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
6636-00-480-6493INTERCHANGEABLE
CHAMBER,ENVIRONMENTAL TESTING
31295
5330-00-485-3586INTERCHANGEABLE
PACKING,PREFORMED
2CT976
2930-00-776-0491INTERCHANGEABLE
SPRING THERMOSTAT
308435C1
5905-00-831-8465INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,NONIND
995-2A47R0
3424-01-044-5445INTERCHANGEABLE
FURNACE,HEAT TREATING,GAS BURNIN
3910
6520-01-185-7887INTERCHANGEABLE
CROWN,DENTAL,TEMPORARY
7000053336
6150-01-297-3867INTERCHANGEABLE
BUS,CONDUCTOR
3910

Frequently Asked Questions

What is NSN 3439-00-254-8438?

NSN 3439-00-254-8438 is a Solder,tin Alloy, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 3439 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3439-00-254-8438?

NSN 3439-00-254-8438 has 3 cross-referenced part numbers: SB5WS 0.125 1LB (Federal Specifications Promulgated by General Services Administration Washington DC), 3910 (Kennecott Corp Chase Extrusions Div), QQ-S-571 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 3439-00-254-8438?

There are 12 known substitutes for 3439-00-254-8438: 5305-00-042-1721, 3110-00-156-1885, 5331-00-167-5174 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SB5WS 0.125 1LB?

Key specifications for SB5WS 0.125 1LB: Wire Core Type: SOLID; Physical Form: WIRE; Chemical Composition Percentage: TIN 94.0 PCT,ANTIMONY 6.0 PCT,LEAD 0.2 PCT,COPPER 0.08 PCT,IRON 0.08 PCT,ARSENIC 0.05 PCT,ALUMINUM 0.03 PCT,OTHER ELEMENTS 0.03 PCT,ZINC 0.03 PCT,CADMIUM 0.001 PCT; Nondefinitive Spec/std Data: SB5 COMPOSITION AND W FORM AND S TYPE. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3439-00-254-8438 still in active supply?

NSN 3439-00-254-8438 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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