PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

76Z57Electrode,welding

Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng · NSN 3439-00-505-6076 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-505-6076 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-505-6076. Primary manufacturer part number: 76Z57.
Features
  • Electrode,welding — FSC 3439
  • Shape: ROUND
  • Weld Position for Which Designed: ALL POSITIONS
  • Length: 7.000 INCHES NOMINAL IN
  • Flux Coating Type: STABILIZED ARC
  • Material Document and Classification: AWSA5.12-80,CL EWP ASSN STD SINGLE MATERIAL RESPONSE FILLER
  • Material: TUNGSTEN ALLOY NON FILLER
  • Current Type: DC
Applications
  • Applications requiring Tungsten Alloy Non Filler construction
General Description

The Electrode,welding, cataloged under National Stock Number 3439-00-505-6076, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-00-505-6076
Primary Part Number76Z57
Item NameElectrode,welding
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerEsab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
StatusACTIVE
ShapeROUND
Weld Position for Which DesignedALL POSITIONS
Length7.000 INCHES NOMINAL IN
Flux Coating TypeSTABILIZED ARC
Material Document and ClassificationAWSA5.12-80,CL EWP ASSN STD SINGLE MATERIAL RESPONSE FILLER
MaterialTUNGSTEN ALLOY NON FILLER
Current TypeDC
Physical FormSTRAIGHT
Polarity CharacteristicSTRAIGHT
Outside Diameter0.094 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3439-00-344-4099AWSA5.12-80 EWP 0.156 7IN.GROUND INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-505-607376Z54 INTERCHANGEABLE
Electrode,welding
Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
3439-00-655-2089 INTERCHANGEABLE
Electrode,welding
3439-00-727-5947AWSA5.12-80 EWTH-2 0.062 6 IN.LG INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-729-8972AWSA5.12-80 EWTH-1 0.094 7 IN. INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-729-897386Z05 INTERCHANGEABLE
Electrode
Trans-Lux Corporation
3439-00-814-6028AWSA5.12-80 EWP 0.156 7 IN. LG INTERCHANGEABLE
Rod,welding
American Welding Society, Inc.
3439-00-814-6029105Z04 INTERCHANGEABLE
Rod,welding
Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
3439-00-814-6031105Z03 0.094 7 INTERCHANGEABLE
Rod,welding
Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
3439-00-872-1411AWSA5.12-80 EWTH-2 0.040 7IN. LG INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
Cross-Reference Index
Part NumberManufacturer
AWS A5.12/A5.12M American Welding Society, Inc. (USA)
76Z57 L-Tec Welding and Cutting Systems (USA)
76Z57 PRIMARY Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng (USA)
AWSA5.12-80 EWP 0.094 7 IN. LG American Welding Society, Inc. (USA)
Related Parts
3439-00-344-4099INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.12-80 EWP 0.156 7IN.GROUND
3439-00-505-6073INTERCHANGEABLE
ELECTRODE,WELDING
76Z54
3439-00-655-2089INTERCHANGEABLE
ELECTRODE,WELDING
3439-00-727-5947INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.12-80 EWTH-2 0.062 6 IN.LG
3439-00-729-8972INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.12-80 EWTH-1 0.094 7 IN.
3439-00-729-8973INTERCHANGEABLE
ELECTRODE
86Z05
3439-00-814-6028INTERCHANGEABLE
ROD,WELDING
AWSA5.12-80 EWP 0.156 7 IN. LG
3439-00-814-6029INTERCHANGEABLE
ROD,WELDING
105Z04
3439-00-814-6031INTERCHANGEABLE
ROD,WELDING
105Z03 0.094 7
3439-00-872-1411INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.12-80 EWTH-2 0.040 7IN. LG
3439-01-012-1002INTERCHANGEABLE
ELECTRODE,WELDING
3439-01-032-5978INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.12-80 EWTH-2 0.062 7 IN.

Frequently Asked Questions

What is NSN 3439-00-505-6076?

NSN 3439-00-505-6076 is a Electrode,welding, manufactured by Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng, classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-00-505-6076?

NSN 3439-00-505-6076 has 4 cross-referenced part numbers: AWS A5.12/A5.12M (American Welding Society, Inc.), 76Z57 (L-Tec Welding and Cutting Systems), 76Z57 (Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng), AWSA5.12-80 EWP 0.094 7 IN. LG (American Welding Society, Inc.).

What NSN replaces 3439-00-505-6076?

There are 12 known substitutes for 3439-00-505-6076: 3439-00-344-4099, 3439-00-505-6073, 3439-00-655-2089 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 76Z57?

Key specifications for 76Z57: Shape: ROUND; Weld Position for Which Designed: ALL POSITIONS; Length: 7.000 INCHES NOMINAL IN; Flux Coating Type: STABILIZED ARC. 10 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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