PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40003Flux,soldering

J. W. Harris Co., Inc. · NSN 3439-01-314-5907 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-01-314-5907 — this item is cataloged by the U.S. Government under National Stock Number 3439-01-314-5907. Primary manufacturer part number: 40003.
Features
  • Flux,soldering — FSC 3439
  • Physical Form: LIQUID
  • Specific Metal for Which Formulated: ALL EXCEPT ALUMINUM
  • Content Within Each Unit Package: 16 OUNCES OZ
  • Material for Which Formulated: LEAD TIN ALLOY
  • Environmental Protection: CORROSION RESISTANT
  • 1 verified cross-reference
  • Primary manufacturer: J. W. Harris Co., Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Flux,soldering, cataloged under National Stock Number 3439-01-314-5907, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is J. W. Harris Co., Inc.. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-01-314-5907
Primary Part Number40003
Item NameFlux,soldering
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerJ. W. Harris Co., Inc.
StatusACTIVE
Physical FormLIQUID
Specific Metal for Which FormulatedALL EXCEPT ALUMINUM
Content Within Each Unit Package16 OUNCES OZ
Material for Which FormulatedLEAD TIN ALLOY
Environmental ProtectionCORROSION RESISTANT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3510-00-007-964340003 INTERCHANGEABLE
Cover,padding,commercial Laundry
Unipress Corporation
4730-00-068-65525600-6-6S INTERCHANGEABLE
Coupling Assembly,quick Disconne
Danfoss Power Solutions II, Llc
2910-00-431-0286M6588 INTERCHANGEABLE
Pump,fuel,cam Actuated
Federal-Mogul Corp Government Sales Dept
3030-00-432-99244000-3 INTERCHANGEABLE
Belt,flat
Rockland, Inc.
3455-00-554-731910420 INTERCHANGEABLE
Cutter,milling,plain
Niagara Cutter Inc
4720-01-018-654740003 INTERCHANGEABLE
Hose,metallic
Walker Mfg Co
6220-01-113-821040003 INTERCHANGEABLE
Light,dome
Truck-Lite Co., Llc
3040-01-181-568240003 INTERCHANGEABLE
Shaft,gear
Republic Machinery Co Inc Dba Republic Lagun Machine Tool Co
6505-01-393-771840003 INTERCHANGEABLE
Skin Protective Cream,glove
Advanced Chemical Technology Inc
8465-01-532-642340003 INTERCHANGEABLE
Hydration System
Camelbak Products, Llc Dba Camelbak
Cross-Reference Index
Part NumberManufacturer
40003 PRIMARY J. W. Harris Co., Inc. (USA)
Related Parts
3510-00-007-9643INTERCHANGEABLE
COVER,PADDING,COMMERCIAL LAUNDRY
40003
4730-00-068-6552INTERCHANGEABLE
COUPLING ASSEMBLY,QUICK DISCONNE
5600-6-6S
2910-00-431-0286INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
M6588
3030-00-432-9924INTERCHANGEABLE
BELT,FLAT
4000-3
3455-00-554-7319INTERCHANGEABLE
CUTTER,MILLING,PLAIN
10420
4720-01-018-6547INTERCHANGEABLE
HOSE,METALLIC
40003
6220-01-113-8210INTERCHANGEABLE
LIGHT,DOME
40003
3040-01-181-5682INTERCHANGEABLE
SHAFT,GEAR
40003
6505-01-393-7718INTERCHANGEABLE
SKIN PROTECTIVE CREAM,GLOVE
40003
8465-01-532-6423INTERCHANGEABLE
HYDRATION SYSTEM
40003
4710-01-593-8073INTERCHANGEABLE
PIPE,METALLIC

Frequently Asked Questions

What is NSN 3439-01-314-5907?

NSN 3439-01-314-5907 is a Flux,soldering, manufactured by J. W. Harris Co., Inc., classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-01-314-5907?

NSN 3439-01-314-5907 has 1 cross-referenced part number: 40003 (J. W. Harris Co., Inc.).

What NSN replaces 3439-01-314-5907?

There are 11 known substitutes for 3439-01-314-5907: 3510-00-007-9643, 4730-00-068-6552, 2910-00-431-0286 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40003?

Key specifications for 40003: Physical Form: LIQUID; Specific Metal for Which Formulated: ALL EXCEPT ALUMINUM; Content Within Each Unit Package: 16 OUNCES OZ; Material for Which Formulated: LEAD TIN ALLOY. 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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