PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AWSA5.6-76 ECUSN-A 0.188 10LBElectrode,welding

American Welding Society, Inc. · NSN 3439-00-255-8910 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-255-8910 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-255-8910. Primary manufacturer part number: AWSA5.6-76 ECUSN-A 0.188 10LB.
Features
  • Electrode,welding — FSC 3439
  • Material: COPPER ALLOY FILLER
  • Flux Coating Type: SHIELDED ARC
  • Container Type: CAN
  • Polarity Characteristic: REVERSE
  • Weld Position for Which Designed: ALL POSITIONS
  • Length: 14.000 INCHES NOMINAL IN
  • Current Type: DC
Applications
  • Applications requiring Copper Alloy Filler construction
General Description

The Electrode,welding, cataloged under National Stock Number 3439-00-255-8910, 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 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3439-00-255-8910
Primary Part NumberAWSA5.6-76 ECUSN-A 0.188 10LB
Item NameElectrode,welding
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerAmerican Welding Society, Inc.
StatusCANCELLED
MaterialCOPPER ALLOY FILLER
Flux Coating TypeSHIELDED ARC
Container TypeCAN
Polarity CharacteristicREVERSE
Weld Position for Which DesignedALL POSITIONS
Length14.000 INCHES NOMINAL IN
Current TypeDC
Physical FormSTRAIGHT
Outside Diameter0.188 INCHES NOMINAL IN
Quantity Within Each Unit Package10.0 POUNDS LBS
ShapeROUND
Material Document and ClassificationAWSA5.6-76,CL ECUSN-A ASSN STD SINGLE MATERIAL RESPONSE FILLER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3439-00-200-1376AWSA5.6-08 CL ECUSN-A 0.125 INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
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
AWSA5.6-76 ECUSN-A 0.188 10LB PRIMARY American Welding Society, Inc. (USA)
AWS A5.6 American Welding Society, Inc. (USA)
AERISWELD Lincoln Electric Holdings Inc (USA)
Related Parts
3439-00-200-1376INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.6-08 CL ECUSN-A 0.125
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 3439-00-255-8910?

NSN 3439-00-255-8910 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 3439-00-255-8910?

NSN 3439-00-255-8910 has 3 cross-referenced part numbers: AWSA5.6-76 ECUSN-A 0.188 10LB (American Welding Society, Inc.), AWS A5.6 (American Welding Society, Inc.), AERISWELD (Lincoln Electric Holdings Inc).

What NSN replaces 3439-00-255-8910?

There are 6 known substitutes for 3439-00-255-8910: 3439-00-200-1376, 3439-00-262-2739, 3439-00-262-2740 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AWSA5.6-76 ECUSN-A 0.188 10LB?

Key specifications for AWSA5.6-76 ECUSN-A 0.188 10LB: Material: COPPER ALLOY FILLER; Flux Coating Type: SHIELDED ARC; Container Type: CAN; Polarity Characteristic: REVERSE. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3439-00-255-8910 still in active supply?

NSN 3439-00-255-8910 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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