PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AZ61A 0.125Rod,welding

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 3439-00-262-4286 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-262-4286 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-262-4286. Primary manufacturer part number: AZ61A 0.125.
Features
  • Rod,welding — FSC 3439
  • Material Document and Classification: AWSA5.19-80 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Filler Metal Chemical Composition in Percent: 0.15 MANGANESE NOMINAL FOURTH ELEMENT
  • Shape: ROUND
  • Process Type for Which Designed: GAS TUNGSTEN ARC OR GAS METAL ARC
  • Filler Metal Chemical Composition in Percent: 0.05 COPPER NOMINAL FIFTH ELEMENT
  • Filler Metal Chemical Composition in Percent: 0.05 SILICON NOMINAL SIXTH ELEMENT
  • Filler Metal Chemical Composition in Percent: 1.50 ZINC NOMINAL THIRD ELEMENT
Applications
  • Applications requiring Magnesium Alloy Filler construction
General Description

The Rod,welding, cataloged under National Stock Number 3439-00-262-4286, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 14 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: Active.

Technical Specifications
ParameterValue
NSN3439-00-262-4286
Primary Part NumberAZ61A 0.125
Item NameRod,welding
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Material Document and ClassificationAWSA5.19-80 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Filler Metal Chemical Composition in Percent0.15 MANGANESE NOMINAL FOURTH ELEMENT
ShapeROUND
Process Type for Which DesignedGAS TUNGSTEN ARC OR GAS METAL ARC
Filler Metal Chemical Composition in Percent0.05 COPPER NOMINAL FIFTH ELEMENT
Filler Metal Chemical Composition in Percent0.05 SILICON NOMINAL SIXTH ELEMENT
Filler Metal Chemical Composition in Percent1.50 ZINC NOMINAL THIRD ELEMENT
Weld Position for Which DesignedALL POSITIONS
Length36.000 INCHES NOMINAL IN
Filler Metal Chemical Composition in Percent7.02 ALUMINUM NOMINAL SECOND ELEMENT
Outside Diameter0.125 INCHES NOMINAL IN
Physical FormSTRAIGHT
MaterialMAGNESIUM ALLOY FILLER
Filler Metal Chemical Composition in Percent91.00 MAGNESIUM NOMINAL FIRST ELEMENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-007-7369 INTERCHANGEABLE
Semiconductor Device,diode
3439-00-204-3203 INTERCHANGEABLE
Rod,welding
3439-00-204-3279 INTERCHANGEABLE
Rod,welding
3439-00-204-3280 INTERCHANGEABLE
Rod,welding
5905-00-252-6932JANR94EXCEPTF0RAEQ10B1AND10 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Joint Electronics Type Designation System
3439-00-262-4285 INTERCHANGEABLE
Rod,welding
4320-00-398-9518J1 INTERCHANGEABLE
Shaft,transmission,pump
Circor Naval Solutions Llc Dba Warren Pumps
6625-00-544-5899 INTERCHANGEABLE
Meter,special Scale
4940-00-855-1666J1 INTERCHANGEABLE
Vibrator,fire Contr
Fmc Technologies Inc Div Material Handling Solutions
3439-00-892-4398 INTERCHANGEABLE
Electrode,welding
Cross-Reference Index
Part NumberManufacturer
AZ61A 0.125 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AWS A5.19 American Welding Society, Inc. (USA)
MIL-R-6944 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
J1 The Dow Chemical Company Div Performance Chemicals (USA)
AWSA5.19-80 American Welding Society, Inc. (USA)
AMC Aluminum Co of America (USA)
Related Parts
5961-00-007-7369INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
3439-00-204-3203INTERCHANGEABLE
ROD,WELDING
3439-00-204-3279INTERCHANGEABLE
ROD,WELDING
3439-00-204-3280INTERCHANGEABLE
ROD,WELDING
5905-00-252-6932INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
JANR94EXCEPTF0RAEQ10B1AND10
3439-00-262-4285INTERCHANGEABLE
ROD,WELDING
4320-00-398-9518INTERCHANGEABLE
SHAFT,TRANSMISSION,PUMP
J1
6625-00-544-5899INTERCHANGEABLE
METER,SPECIAL SCALE
4940-00-855-1666INTERCHANGEABLE
VIBRATOR,FIRE CONTR
J1
3439-00-892-4398INTERCHANGEABLE
ELECTRODE,WELDING
6685-01-109-7035INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
2503096
5330-01-177-9162INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA

Frequently Asked Questions

What is NSN 3439-00-262-4286?

NSN 3439-00-262-4286 is a Rod,welding, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-00-262-4286?

NSN 3439-00-262-4286 has 6 cross-referenced part numbers: AZ61A 0.125 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AWS A5.19 (American Welding Society, Inc.), MIL-R-6944 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), J1 (The Dow Chemical Company Div Performance Chemicals), AWSA5.19-80 (American Welding Society, Inc.) and 1 more.

What NSN replaces 3439-00-262-4286?

There are 12 known substitutes for 3439-00-262-4286: 5961-00-007-7369, 3439-00-204-3203, 3439-00-204-3279 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AZ61A 0.125?

Key specifications for AZ61A 0.125: Material Document and Classification: AWSA5.19-80 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Filler Metal Chemical Composition in Percent: 0.15 MANGANESE NOMINAL FOURTH ELEMENT; Shape: ROUND; Process Type for Which Designed: GAS TUNGSTEN ARC OR GAS METAL ARC. 14 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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