PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HD-S12Holder,soldering Iron

Hexacon Electric Company · NSN 3439-00-540-4755 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-540-4755 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-540-4755. Primary manufacturer part number: HD-S12.
Features
  • Holder,soldering Iron — FSC 3439
  • Overall Diameter: 3.000 INCHES NOMINAL IN
  • Design Type: OPEN CRADLE
  • Material: STEEL BASE
  • Tip Cleaner Cup: NOT INCLUDED
  • Thermostatic Control: NOT INCLUDED
  • Material: STEEL HOLDING DEVICE
  • 6 verified cross-references
Applications
  • Applications requiring Steel Base construction
General Description

The Holder,soldering Iron, cataloged under National Stock Number 3439-00-540-4755, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 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
NSN3439-00-540-4755
Primary Part NumberHD-S12
Item NameHolder,soldering Iron
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerHexacon Electric Company
StatusCANCELLED
Overall Diameter3.000 INCHES NOMINAL IN
Design TypeOPEN CRADLE
MaterialSTEEL BASE
Tip Cleaner CupNOT INCLUDED
Thermostatic ControlNOT INCLUDED
MaterialSTEEL HOLDING DEVICE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-020-8637 INTERCHANGEABLE
Adapter,torque Wrench
5977-00-284-9926050-10088-08 INTERCHANGEABLE
Brush,electrical Contact
Kato Engineering Inc.
1075-00-383-82713134727B INTERCHANGEABLE
Plate,retainer
Naval Ship Systems Command
4330-00-424-580513842D INTERCHANGEABLE
Case
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5990-00-538-7330AY201A1B INTERCHANGEABLE
Synchro,transmitter
Honeywell International Inc. Dba Honeywell International
6625-00-951-2459 INTERCHANGEABLE
Test Set Subassembly,electrical
4210-00-956-1498 INTERCHANGEABLE
Adapter
3120-00-986-1842HD12 INTERCHANGEABLE
Bearing,sleeve
Schramm, Inc.
5945-01-009-21148526 INTERCHANGEABLE
Relay,solid State
Opcon Inc
5962-01-115-1685C8899-2 INTERCHANGEABLE
Microcircuit,linear
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
Cross-Reference Index
Part NumberManufacturer
8526 At and T Corp (USA)
S12 Hexacon Electric Company (USA)
HD-S12 PRIMARY Hexacon Electric Company (USA)
UA34626 L3harris Technologies, Inc. Dba Harris Corporation (USA)
HD-12 Hexacon Electric Company (USA)
UA34626 Itt Industries Inc Itt Aerospace Communications Div East (USA)
Related Parts
5120-00-020-8637INTERCHANGEABLE
ADAPTER,TORQUE WRENCH
5977-00-284-9926INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
050-10088-08
1075-00-383-8271INTERCHANGEABLE
PLATE,RETAINER
3134727B
4330-00-424-5805INTERCHANGEABLE
CASE
13842D
5990-00-538-7330INTERCHANGEABLE
SYNCHRO,TRANSMITTER
AY201A1B
6625-00-951-2459INTERCHANGEABLE
TEST SET SUBASSEMBLY,ELECTRICAL
4210-00-956-1498INTERCHANGEABLE
ADAPTER
3120-00-986-1842INTERCHANGEABLE
BEARING,SLEEVE
HD12
5945-01-009-2114INTERCHANGEABLE
RELAY,SOLID STATE
8526
5962-01-115-1685INTERCHANGEABLE
MICROCIRCUIT,LINEAR
C8899-2
4820-01-208-4255INTERCHANGEABLE
VALVE,SAFETY RELIEF
E8632P41M
1680-01-279-3544INTERCHANGEABLE
ACTUATOR,ELECTRO-MECHANICAL,LINE
8526

Frequently Asked Questions

What is NSN 3439-00-540-4755?

NSN 3439-00-540-4755 is a Holder,soldering Iron, manufactured by Hexacon Electric Company, classified under FSC 3439 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3439-00-540-4755?

NSN 3439-00-540-4755 has 6 cross-referenced part numbers: 8526 (At and T Corp), S12 (Hexacon Electric Company), HD-S12 (Hexacon Electric Company), UA34626 (L3harris Technologies, Inc. Dba Harris Corporation), HD-12 (Hexacon Electric Company) and 1 more.

What NSN replaces 3439-00-540-4755?

There are 12 known substitutes for 3439-00-540-4755: 5120-00-020-8637, 5977-00-284-9926, 1075-00-383-8271 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HD-S12?

Key specifications for HD-S12: Overall Height: 1.500 INCHES NOMINAL IN; Overall Diameter: 3.000 INCHES NOMINAL IN; Design Type: OPEN CRADLE; Material: STEEL BASE. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3439-00-540-4755 still in active supply?

NSN 3439-00-540-4755 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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