PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6939Desoldering Tool,electric

Apex Tool Group, Llc · NSN 3439-00-421-8737 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-421-8737 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-421-8737. Primary manufacturer part number: 6939.
Features
  • Desoldering Tool,electric — FSC 3439
  • Tip Size: 0.125 IN. DIA; 0.375 IN. DIA IN
  • Wattage Rating in Watts: 18.000 NOMINAL
  • Heating Element Type: HEAD
  • Mounting Method: THREADED END TIP
  • Tip Quantity: 3
  • Transformer: NOT INCLUDED
  • Operating Voltage in Volts: 120.000 NOMINAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Desoldering Tool,electric, cataloged under National Stock Number 3439-00-421-8737, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Apex Tool Group, Llc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-00-421-8737
Primary Part Number6939
Item NameDesoldering Tool,electric
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerApex Tool Group, Llc
StatusACTIVE
Tip Size0.125 IN. DIA; 0.375 IN. DIA IN
Wattage Rating in Watts18.000 NOMINAL
Heating Element TypeHEAD
Mounting MethodTHREADED END TIP
Tip Quantity3
TransformerNOT INCLUDED
Operating Voltage in Volts120.000 NOMINAL
Tip ShapeSLOTTED BAR AND SLOTTED LEAD STRAIGHTENER AND CUP
Handle TypeSTRAIGHT
Carrying CaseNOT PROVIDED
Current TypeAC
Thermostatic ControlNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6510-00-116-13116939G INTERCHANGEABLE
Sponge,surgical
Cardinal Health 200, Llc
5340-00-246-74026939 INTERCHANGEABLE
Clevis,rod End
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
2940-00-308-84398678327 INTERCHANGEABLE
Filter Element,intake Air Cleane
U S Army Tank Automotive Command Amsta-Im-Mm
5930-00-356-82126939 INTERCHANGEABLE
Switch,toggle
Clayton Manufacturing Company
3020-00-374-10296939 INTERCHANGEABLE
Gear,internal
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5960-00-617-6178 INTERCHANGEABLE
Electron Tube
5960-00-729-2463 INTERCHANGEABLE
Electron Tube
5310-01-155-34452BA553 INTERCHANGEABLE
Washer,flat
Oshkosh Defense Llc
5935-01-193-0615006939 INTERCHANGEABLE
Socket
Abd Intl Inc Dba Abdick
5305-01-399-7046SKB-465 ITEM 651 INTERCHANGEABLE
Screw,machine
Coffin Turbo Pump Inc
Cross-Reference Index
Part NumberManufacturer
6939 Apex Tool Group, Llc (USA)
6939 Cooper Industries Inc Coopertools (USA)
Related Parts
6510-00-116-1311INTERCHANGEABLE
SPONGE,SURGICAL
6939G
5340-00-246-7402INTERCHANGEABLE
CLEVIS,ROD END
6939
2940-00-308-8439INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
8678327
5930-00-356-8212INTERCHANGEABLE
SWITCH,TOGGLE
6939
3020-00-374-1029INTERCHANGEABLE
GEAR,INTERNAL
6939
5960-00-617-6178INTERCHANGEABLE
ELECTRON TUBE
5960-00-729-2463INTERCHANGEABLE
ELECTRON TUBE
5310-01-155-3445INTERCHANGEABLE
WASHER,FLAT
2BA553
5935-01-193-0615INTERCHANGEABLE
SOCKET
006939
5305-01-399-7046INTERCHANGEABLE
SCREW,MACHINE
SKB-465 ITEM 651

Frequently Asked Questions

What is NSN 3439-00-421-8737?

NSN 3439-00-421-8737 is a Desoldering Tool,electric, manufactured by Apex Tool Group, Llc, classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-00-421-8737?

NSN 3439-00-421-8737 has 2 cross-referenced part numbers: 6939 (Apex Tool Group, Llc), 6939 (Cooper Industries Inc Coopertools).

What NSN replaces 3439-00-421-8737?

There are 10 known substitutes for 3439-00-421-8737: 6510-00-116-1311, 5340-00-246-7402, 2940-00-308-8439 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6939?

Key specifications for 6939: Overall Length: 1.500 INCHES NOMINAL IN; Tip Size: 0.125 IN. DIA; 0.375 IN. DIA IN; Wattage Rating in Watts: 18.000 NOMINAL; Heating Element Type: HEAD. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com