PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SI-25S 25WSoldering Iron,electric

Hexacon Electric Company · NSN 3439-00-971-8930 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-971-8930 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-971-8930. Primary manufacturer part number: SI-25S 25W.
Features
  • Soldering Iron,electric — FSC 3439
  • Tip Size: 1/8 IN. DIA IN
  • Wattage Rating in Watts: 25.000 NOMINAL
  • Operating Voltage in Volts: 110.000 MINIMUM AND 120.000 MAXIMUM
  • Tip Quantity: 1
  • Tip Shape: PYRAMID
  • Mounting Method: SETSCREW TIP
  • Current Type: AC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Soldering Iron,electric, cataloged under National Stock Number 3439-00-971-8930, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Hexacon Electric Company. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN3439-00-971-8930
Primary Part NumberSI-25S 25W
Item NameSoldering Iron,electric
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerHexacon Electric Company
StatusCANCELLED
Tip Size1/8 IN. DIA IN
Wattage Rating in Watts25.000 NOMINAL
Operating Voltage in Volts110.000 MINIMUM AND 120.000 MAXIMUM
Tip Quantity1
Tip ShapePYRAMID
Mounting MethodSETSCREW TIP
Current TypeAC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6220-00-056-6751 INTERCHANGEABLE
Light,dome
6750-00-286-269025S INTERCHANGEABLE
Paper,copying,diazo Process
Diazo Specialty Co Dba Dsc Systems Graphics
5120-00-293-3006HSF-25S INTERCHANGEABLE
Face,hammer,inserted
Williams J H Industrial Products Inc
5360-00-320-3106S8201-838068PC25 INTERCHANGEABLE
Spring,helical,extension
Naval Ship Systems Command
6625-00-539-8733 INTERCHANGEABLE
Ammeter
6625-00-539-8734 INTERCHANGEABLE
Voltmeter
3820-00-634-9344 INTERCHANGEABLE
Sheeting Driver Head,paving Brea
6685-00-954-844925S INTERCHANGEABLE
Dampener,fluid Pressure
Chemiquip Products Co Inc
6680-00-963-847525S INTERCHANGEABLE
Snubber
Ashcroft Inc Dba Heise
4320-01-051-857025S INTERCHANGEABLE
Motor,hydraulic
Lockheed Martin Corporation Div Rms
Cross-Reference Index
Part NumberManufacturer
25S Hexacon Electric Company (USA)
SI-25S 25W PRIMARY Hexacon Electric Company (USA)
SI-25S 25W HT248X Hexacon Electric Company (USA)
Related Parts
6220-00-056-6751INTERCHANGEABLE
LIGHT,DOME
6750-00-286-2690INTERCHANGEABLE
PAPER,COPYING,DIAZO PROCESS
25S
5120-00-293-3006INTERCHANGEABLE
FACE,HAMMER,INSERTED
HSF-25S
5360-00-320-3106INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
S8201-838068PC25
6625-00-539-8733INTERCHANGEABLE
AMMETER
6625-00-539-8734INTERCHANGEABLE
VOLTMETER
3820-00-634-9344INTERCHANGEABLE
SHEETING DRIVER HEAD,PAVING BREA
6685-00-954-8449INTERCHANGEABLE
DAMPENER,FLUID PRESSURE
25S
6680-00-963-8475INTERCHANGEABLE
SNUBBER
25S
4320-01-051-8570INTERCHANGEABLE
MOTOR,HYDRAULIC
25S
6350-01-169-2535INTERCHANGEABLE
TESTER,SMOKE DETECTOR
729-196-00
6685-01-285-0323INTERCHANGEABLE
DAMPENER,FLUID PRESSURE

Frequently Asked Questions

What is NSN 3439-00-971-8930?

NSN 3439-00-971-8930 is a Soldering Iron,electric, manufactured by Hexacon Electric Company, classified under FSC 3439 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3439-00-971-8930?

NSN 3439-00-971-8930 has 3 cross-referenced part numbers: 25S (Hexacon Electric Company), SI-25S 25W (Hexacon Electric Company), SI-25S 25W HT248X (Hexacon Electric Company).

What NSN replaces 3439-00-971-8930?

There are 12 known substitutes for 3439-00-971-8930: 6220-00-056-6751, 6750-00-286-2690, 5120-00-293-3006 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SI-25S 25W?

Key specifications for SI-25S 25W: Tip Size: 1/8 IN. DIA IN; Wattage Rating in Watts: 25.000 NOMINAL; Operating Voltage in Volts: 110.000 MINIMUM AND 120.000 MAXIMUM; Tip Quantity: 1. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3439-00-971-8930 still in active supply?

NSN 3439-00-971-8930 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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