PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BB-4Desoldering Wick

Eis Inc Dba Com-Kyl,div of Eis · NSN 3439-00-372-3480 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-372-3480 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-372-3480. Primary manufacturer part number: BB-4.
Features
  • Desoldering Wick — FSC 3439
  • General Characteristics Item Description: UNTINNED COPPER BRAID; 0.095 TO 0.125 IN. W; 5 FT LG ON ROLL IN
  • 9 verified cross-references
  • Primary manufacturer: Eis Inc Dba Com-Kyl,div of Eis
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Desoldering Wick, cataloged under National Stock Number 3439-00-372-3480, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Eis Inc Dba Com-Kyl,div of Eis. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-00-372-3480
Primary Part NumberBB-4
Item NameDesoldering Wick
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerEis Inc Dba Com-Kyl,div of Eis
StatusACTIVE
General Characteristics Item DescriptionUNTINNED COPPER BRAID; 0.095 TO 0.125 IN. W; 5 FT LG ON ROLL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-070-7912 INTERCHANGEABLE
Coil,radio Frequency
5307-00-217-06904844 INTERCHANGEABLE
Stud,plain
Brinkley Technology Group Llc Dba Hercules Manufacturing
2825-00-218-60829985 INTERCHANGEABLE
Seat,regulating Val
Northrop Grumman Systems Corporation Div Marine Systems
3417-00-223-6310 INTERCHANGEABLE
Milling Machine,horizontal,plain
5940-00-230-9908 INTERCHANGEABLE
Splice,conductor
6640-00-273-70559985-75 INTERCHANGEABLE
Watch Glass,laboratory
Corning Glass Works
5120-00-277-3368 INTERCHANGEABLE
Wrench,box
6640-00-290-6808 INTERCHANGEABLE
Watch Glass,laboratory
5815-00-412-91254844 INTERCHANGEABLE
Stiffener,contact
Lucent Technologies Inc Corporate Headquarters
5955-00-499-7330712732-23 INTERCHANGEABLE
Crystal Unit,quartz
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
80-4-5 Illinois Tool Works Inc. Div Itw Chemtronics (USA)
40-4-5 Chemtronics Inc (USA)
484-4 Assembly Technologies International Inc. (USA)
50-4-5 Illinois Tool Works Inc. Div Itw Chemtronics (USA)
BB-4 PRIMARY Eis Inc Dba Com-Kyl,div of Eis (USA)
10-5L Illinois Tool Works Inc. Div Itw Chemtronics (USA)
W78-5 Hexacon Electric Company (USA)
S0DERWICKSIZE4 Chemtronics Inc (USA)
998-5 Hexacon Electric Company (USA)
Related Parts
5950-00-070-7912INTERCHANGEABLE
COIL,RADIO FREQUENCY
5307-00-217-0690INTERCHANGEABLE
STUD,PLAIN
4844
2825-00-218-6082INTERCHANGEABLE
SEAT,REGULATING VAL
9985
3417-00-223-6310INTERCHANGEABLE
MILLING MACHINE,HORIZONTAL,PLAIN
5940-00-230-9908INTERCHANGEABLE
SPLICE,CONDUCTOR
6640-00-273-7055INTERCHANGEABLE
WATCH GLASS,LABORATORY
9985-75
5120-00-277-3368INTERCHANGEABLE
WRENCH,BOX
6640-00-290-6808INTERCHANGEABLE
WATCH GLASS,LABORATORY
5815-00-412-9125INTERCHANGEABLE
STIFFENER,CONTACT
4844
5955-00-499-7330INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
712732-23
5935-00-500-8117INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
R883B198
7510-00-502-9143INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE

Frequently Asked Questions

What is NSN 3439-00-372-3480?

NSN 3439-00-372-3480 is a Desoldering Wick, manufactured by Eis Inc Dba Com-Kyl,div of Eis, classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-00-372-3480?

NSN 3439-00-372-3480 has 9 cross-referenced part numbers: 80-4-5 (Illinois Tool Works Inc. Div Itw Chemtronics), 40-4-5 (Chemtronics Inc), 484-4 (Assembly Technologies International Inc.), 50-4-5 (Illinois Tool Works Inc. Div Itw Chemtronics), BB-4 (Eis Inc Dba Com-Kyl,div of Eis) and 4 more.

What NSN replaces 3439-00-372-3480?

There are 12 known substitutes for 3439-00-372-3480: 5950-00-070-7912, 5307-00-217-0690, 2825-00-218-6082 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BB-4?

Key specifications for BB-4: General Characteristics Item Description: UNTINNED COPPER BRAID; 0.095 TO 0.125 IN. W; 5 FT LG ON ROLL IN. 1 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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