PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

70Electrode,welding

Messer Llc · NSN 3439-00-247-5159 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-247-5159 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-247-5159. Primary manufacturer part number: 70.
Features
  • Electrode,welding — FSC 3439
  • Nondefinitive Spec/std Data: MIL-ECUSN-A CLASS AND 5/32 SIZE
  • Current Type: DC
  • Shape: ROUND
  • Physical Form: STRAIGHT
  • Material Document and Classification: MIL-E-13191,CL ECUSN-A MIL SPEC SINGLE MATERIAL RESPONSE FILLER
  • Length: 14.000 INCHES NOMINAL IN
  • Polarity Characteristic: REVERSE
Applications
  • Applications requiring Copper Alloy Filler construction
General Description

The Electrode,welding, cataloged under National Stock Number 3439-00-247-5159, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Messer Llc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN3439-00-247-5159
Primary Part Number70
Item NameElectrode,welding
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerMesser Llc
StatusACTIVE
Nondefinitive Spec/std DataMIL-ECUSN-A CLASS AND 5/32 SIZE
Current TypeDC
ShapeROUND
Physical FormSTRAIGHT
Material Document and ClassificationMIL-E-13191,CL ECUSN-A MIL SPEC SINGLE MATERIAL RESPONSE FILLER
Length14.000 INCHES NOMINAL IN
Polarity CharacteristicREVERSE
Flux Coating TypeSHIELDED ARC
Weld Position for Which DesignedALL POSITIONS
MaterialCOPPER ALLOY FILLER
Outside Diameter0.156 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3030-00-080-8768AP38 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
6240-00-153-651820B INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
3439-00-200-1376AWSA5.6-08 CL ECUSN-A 0.125 INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
4210-00-257-5343 INTERCHANGEABLE
Extinguisher,fire
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.
5960-00-273-2449 INTERCHANGEABLE
Retainer,electron Tube
4720-00-288-9875 INTERCHANGEABLE
Hose,nonmetallic
Cross-Reference Index
Part NumberManufacturer
70 Messer Llc (USA)
20B Liquid Air Corp Industrial Gases Div (USA)
MIL-E-13191 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
20SA Messer Llc (USA)
520 Una Welding Inc (USA)
Related Parts
3030-00-080-8768INTERCHANGEABLE
BELT,V
AP38
6240-00-153-6518INTERCHANGEABLE
LAMP,INCANDESCENT
20B
3439-00-200-1376INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.6-08 CL ECUSN-A 0.125
4210-00-257-5343INTERCHANGEABLE
EXTINGUISHER,FIRE
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
5960-00-273-2449INTERCHANGEABLE
RETAINER,ELECTRON TUBE
4720-00-288-9875INTERCHANGEABLE
HOSE,NONMETALLIC
5360-00-300-6037INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
20B
3010-00-474-6967INTERCHANGEABLE
BELLOWS,PRESSURE

Frequently Asked Questions

What is NSN 3439-00-247-5159?

NSN 3439-00-247-5159 is a Electrode,welding, manufactured by Messer Llc, classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-00-247-5159?

NSN 3439-00-247-5159 has 5 cross-referenced part numbers: 70 (Messer Llc), 20B (Liquid Air Corp Industrial Gases Div), MIL-E-13191 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 20SA (Messer Llc), 520 (Una Welding Inc).

What NSN replaces 3439-00-247-5159?

There are 12 known substitutes for 3439-00-247-5159: 3030-00-080-8768, 6240-00-153-6518, 3439-00-200-1376 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 70?

Key specifications for 70: Nondefinitive Spec/std Data: MIL-ECUSN-A CLASS AND 5/32 SIZE; Current Type: DC; Shape: ROUND; Physical Form: STRAIGHT. 11 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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