PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AWSA5.18-79 ER70S-4 0.035 12LBElectrode,welding

American Welding Society, Inc. · NSN 3439-01-122-1900 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-01-122-1900 — this item is cataloged by the U.S. Government under National Stock Number 3439-01-122-1900. Primary manufacturer part number: AWSA5.18-79 ER70S-4 0.035 12LB.
Features
  • Electrode,welding — FSC 3439
  • Material Document and Classification: AWSA5.18-79,CL ER70S-4 ASSN STD SINGLE MATERIAL RESPONSE FILLER
  • Weld Position for Which Designed: ALL POSITIONS
  • Material: STEEL FILLER
  • Container Type: REEL
  • Flux Coating Type: SHIELDED ARC
  • Quantity Within Each Unit Package: 12.0 POUNDS LBS
  • Current Type: AC
Applications
  • Applications requiring Steel Filler construction
General Description

The Electrode,welding, cataloged under National Stock Number 3439-01-122-1900, 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 8 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-01-122-1900
Primary Part NumberAWSA5.18-79 ER70S-4 0.035 12LB
Item NameElectrode,welding
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerAmerican Welding Society, Inc.
StatusACTIVE
Material Document and ClassificationAWSA5.18-79,CL ER70S-4 ASSN STD SINGLE MATERIAL RESPONSE FILLER
Weld Position for Which DesignedALL POSITIONS
MaterialSTEEL FILLER
Container TypeREEL
Flux Coating TypeSHIELDED ARC
Quantity Within Each Unit Package12.0 POUNDS LBS
Current TypeAC
Outside Diameter0.035 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3439-00-066-4804 INTERCHANGEABLE
Electrode,welding
3439-00-200-1583 INTERCHANGEABLE
Electrode,welding
3439-00-204-3203 INTERCHANGEABLE
Rod,welding
3439-00-372-4776AWSA5.18-79 E70S-3 0.045 12LB INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-593-2241AWSA5.18-79 E70S-3 0.035 2-1/2LB INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-900-8737 INTERCHANGEABLE
Rod,welding
3439-01-012-1003ER70S-3 INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-01-017-2792 INTERCHANGEABLE
Rod,welding
3439-01-045-0481HB28 .045 INTERCHANGEABLE
Electrode,welding
Hobart Bros Co
3439-01-092-4596AWS A5.18-17ER70S-6 0.045 33LBSP INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
Cross-Reference Index
Part NumberManufacturer
MIL-E-23765 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AWS A5.18/A5.18M American Welding Society, Inc. (USA)
MIL-70S-4 0.035 12LB SPOOL Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AWSA5.18-79 ER70S-4 0.035 12LB PRIMARY American Welding Society, Inc. (USA)
Related Parts
3439-00-066-4804INTERCHANGEABLE
ELECTRODE,WELDING
3439-00-200-1583INTERCHANGEABLE
ELECTRODE,WELDING
3439-00-204-3203INTERCHANGEABLE
ROD,WELDING
3439-00-372-4776INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.18-79 E70S-3 0.045 12LB
3439-00-593-2241INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.18-79 E70S-3 0.035 2-1/2LB
3439-00-900-8737INTERCHANGEABLE
ROD,WELDING
3439-01-012-1003INTERCHANGEABLE
ELECTRODE,WELDING
ER70S-3
3439-01-017-2792INTERCHANGEABLE
ROD,WELDING
3439-01-045-0481INTERCHANGEABLE
ELECTRODE,WELDING
HB28 .045
3439-01-092-4596INTERCHANGEABLE
ELECTRODE,WELDING
AWS A5.18-17ER70S-6 0.045 33LBSP
3439-01-168-6208INTERCHANGEABLE
ELECTRODE,WELDING
HB-28 0.035 30LB
3439-01-323-1288INTERCHANGEABLE
ROD,WELDING
1212F05

Frequently Asked Questions

What is NSN 3439-01-122-1900?

NSN 3439-01-122-1900 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 3439-01-122-1900?

NSN 3439-01-122-1900 has 4 cross-referenced part numbers: MIL-E-23765 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AWS A5.18/A5.18M (American Welding Society, Inc.), MIL-70S-4 0.035 12LB SPOOL (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AWSA5.18-79 ER70S-4 0.035 12LB (American Welding Society, Inc.).

What NSN replaces 3439-01-122-1900?

There are 12 known substitutes for 3439-01-122-1900: 3439-00-066-4804, 3439-00-200-1583, 3439-00-204-3203 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AWSA5.18-79 ER70S-4 0.035 12LB?

Key specifications for AWSA5.18-79 ER70S-4 0.035 12LB: Material Document and Classification: AWSA5.18-79,CL ER70S-4 ASSN STD SINGLE MATERIAL RESPONSE FILLER; Weld Position for Which Designed: ALL POSITIONS; Material: STEEL FILLER; Container Type: REEL. 8 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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