PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AWSA5.6-08 CL ECUSN-A 0.125Electrode,welding

American Welding Society, Inc. · NSN 3439-00-200-1376 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-200-1376 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-200-1376. Primary manufacturer part number: AWSA5.6-08 CL ECUSN-A 0.125.
Features
  • Electrode,welding — FSC 3439
  • Length: 14.000 INCHES NOMINAL IN
  • Shape: ROUND
  • Material Document and Classification: AWSA5.6-79 CL ECUSN-A ASSN STD SINGLE MATERIAL RESPONSE FILLER
  • Material: COPPER ALLOY FILLER
  • Flux Coating Type: SHIELDED ARC
  • Weld Position for Which Designed: ALL POSITIONS
  • Container Type: CAN
Applications
  • Applications requiring Copper Alloy Filler construction
General Description

The Electrode,welding, cataloged under National Stock Number 3439-00-200-1376, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-00-200-1376
Primary Part NumberAWSA5.6-08 CL ECUSN-A 0.125
Item NameElectrode,welding
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerAmerican Welding Society, Inc.
StatusACTIVE
Length14.000 INCHES NOMINAL IN
ShapeROUND
Material Document and ClassificationAWSA5.6-79 CL ECUSN-A ASSN STD SINGLE MATERIAL RESPONSE FILLER
MaterialCOPPER ALLOY FILLER
Flux Coating TypeSHIELDED ARC
Weld Position for Which DesignedALL POSITIONS
Container TypeCAN
Polarity CharacteristicREVERSE
Physical FormSTRAIGHT
Quantity Within Each Unit Package10.0 POUNDS LBS
Current TypeDC
Outside Diameter0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
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
3439-00-262-4267AWS A5.6 ECUSN-C 0.125 14IN INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-618-5796 INTERCHANGEABLE
Electrode,welding
3439-00-618-5797 INTERCHANGEABLE
Electrode,welding
Cross-Reference Index
Part NumberManufacturer
AWSA5.6-79 CL ECUSN-A 0.125 American Welding Society, Inc. (USA)
AWS A5.6 American Welding Society, Inc. (USA)
AWSA5.6-08 CL ECUSN-A 0.125 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
Related Parts
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
3439-00-262-4267INTERCHANGEABLE
ELECTRODE,WELDING
AWS A5.6 ECUSN-C 0.125 14IN
3439-00-618-5796INTERCHANGEABLE
ELECTRODE,WELDING
3439-00-618-5797INTERCHANGEABLE
ELECTRODE,WELDING

Frequently Asked Questions

What is NSN 3439-00-200-1376?

NSN 3439-00-200-1376 is a Electrode,welding, manufactured by American Welding Society, Inc., classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-00-200-1376?

NSN 3439-00-200-1376 has 4 cross-referenced part numbers: AWSA5.6-79 CL ECUSN-A 0.125 (American Welding Society, Inc.), AWS A5.6 (American Welding Society, Inc.), AWSA5.6-08 CL ECUSN-A 0.125 (American Welding Society, Inc.), MIL-E-13191 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 3439-00-200-1376?

There are 8 known substitutes for 3439-00-200-1376: 3439-00-247-5159, 3439-00-255-8910, 3439-00-262-2737 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AWSA5.6-08 CL ECUSN-A 0.125?

Key specifications for AWSA5.6-08 CL ECUSN-A 0.125: Length: 14.000 INCHES NOMINAL IN; Shape: ROUND; Material Document and Classification: AWSA5.6-79 CL ECUSN-A ASSN STD SINGLE MATERIAL RESPONSE FILLER; Material: COPPER ALLOY FILLER. 12 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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