PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AWS A5.6 ECUSN-C 0.125 14INElectrode,welding

American Welding Society, Inc. · NSN 3439-00-262-4267 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-262-4267 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-262-4267. Primary manufacturer part number: AWS A5.6 ECUSN-C 0.125 14IN.
Features
  • Electrode,welding — FSC 3439
  • Outside Diameter: 0.125 INCHES NOMINAL IN
  • Polarity Characteristic: REVERSE
  • Shape: ROUND
  • Material: COPPER ALLOY FILLER
  • Current Type: DC
  • Length: 14.000 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: MIL-ECUSN-C CLASS AND 1/8 SIZE
Applications
  • Applications requiring Copper Alloy Filler construction
General Description

The Electrode,welding, cataloged under National Stock Number 3439-00-262-4267, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is American Welding Society, Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3439-00-262-4267
Primary Part NumberAWS A5.6 ECUSN-C 0.125 14IN
Item NameElectrode,welding
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerAmerican Welding Society, Inc.
StatusCANCELLED
Outside Diameter0.125 INCHES NOMINAL IN
Polarity CharacteristicREVERSE
ShapeROUND
MaterialCOPPER ALLOY FILLER
Current TypeDC
Length14.000 INCHES NOMINAL IN
Nondefinitive Spec/std DataMIL-ECUSN-C CLASS AND 1/8 SIZE
Weld Position for Which DesignedALL POSITIONS
Flux Coating TypeSHIELDED ARC
Material Document and ClassificationMIL-E-13191,CL -1L-ECUSN-C MIL SPEC SINGLE MATERIAL RESPONSE FILLER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
3439-00-200-1376AWSA5.6-08 CL ECUSN-A 0.125 INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-247-5159 INTERCHANGEABLE
Electrode,welding
3439-00-255-8910AWSA5.6-76 ECUSN-A 0.188 10LB INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-262-2737 INTERCHANGEABLE
Electrode,welding
3439-00-262-2739AWSA5.6-79 ECUSN-C 0.156 INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-262-2740 INTERCHANGEABLE
Electrode,welding
3439-00-618-5796 INTERCHANGEABLE
Electrode,welding
3439-00-618-5797 INTERCHANGEABLE
Electrode,welding
Cross-Reference Index
Part NumberManufacturer
AWS A5.6 American Welding Society, Inc. (USA)
AWS A5.6 ECUSN-C 0.125 14IN PRIMARY American Welding Society, Inc. (USA)
MIL-E-13191 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AERISWELD Lincoln Electric Holdings Inc (USA)
Related Parts
3439-00-200-1376INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.6-08 CL ECUSN-A 0.125
3439-00-247-5159INTERCHANGEABLE
ELECTRODE,WELDING
3439-00-255-8910INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.6-76 ECUSN-A 0.188 10LB
3439-00-262-2737INTERCHANGEABLE
ELECTRODE,WELDING
3439-00-262-2739INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.6-79 ECUSN-C 0.156
3439-00-262-2740INTERCHANGEABLE
ELECTRODE,WELDING
3439-00-618-5796INTERCHANGEABLE
ELECTRODE,WELDING
3439-00-618-5797INTERCHANGEABLE
ELECTRODE,WELDING

Frequently Asked Questions

What is NSN 3439-00-262-4267?

NSN 3439-00-262-4267 is a Electrode,welding, manufactured by American Welding Society, Inc., classified under FSC 3439 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3439-00-262-4267?

NSN 3439-00-262-4267 has 4 cross-referenced part numbers: AWS A5.6 (American Welding Society, Inc.), AWS A5.6 ECUSN-C 0.125 14IN (American Welding Society, Inc.), MIL-E-13191 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AERISWELD (Lincoln Electric Holdings Inc).

What NSN replaces 3439-00-262-4267?

There are 8 known substitutes for 3439-00-262-4267: 3439-00-200-1376, 3439-00-247-5159, 3439-00-255-8910 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AWS A5.6 ECUSN-C 0.125 14IN?

Key specifications for AWS A5.6 ECUSN-C 0.125 14IN: Outside Diameter: 0.125 INCHES NOMINAL IN; Polarity Characteristic: REVERSE; Shape: ROUND; Material: COPPER ALLOY FILLER. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3439-00-262-4267 still in active supply?

NSN 3439-00-262-4267 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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