PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A675Electrode,welding

Messer Llc · NSN 3439-00-602-1544 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-602-1544 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-602-1544. Primary manufacturer part number: A675.
Features
  • Electrode,welding — FSC 3439
  • Filler Metal Chemical Composition in Percent: 0.025 PHOSPHOROUS NOMINAL FOURTH ELEMENT
  • Filler Metal Chemical Composition in Percent: 0.10 CARBON NOMINAL THIRD ELEMENT
  • Material: STEEL FILLER
  • Filler Metal Chemical Composition in Percent: 0.50 SILICON NOMINAL SECOND ELEMENT
  • Filler Metal Chemical Composition in Percent: 1.00 MANGANESE NOMINAL FIRST ELEMENT
  • Specification/standard Data: 31505-AWSA5.18-69 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Filler Metal Chemical Composition in Percent: 0.025 SULFUR NOMINAL FIFTH ELEMENT
Applications
  • Applications requiring Steel Filler construction
General Description

The Electrode,welding, cataloged under National Stock Number 3439-00-602-1544, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-00-602-1544
Primary Part NumberA675
Item NameElectrode,welding
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerMesser Llc
StatusACTIVE
Filler Metal Chemical Composition in Percent0.025 PHOSPHOROUS NOMINAL FOURTH ELEMENT
Filler Metal Chemical Composition in Percent0.10 CARBON NOMINAL THIRD ELEMENT
MaterialSTEEL FILLER
Filler Metal Chemical Composition in Percent0.50 SILICON NOMINAL SECOND ELEMENT
Filler Metal Chemical Composition in Percent1.00 MANGANESE NOMINAL FIRST ELEMENT
Specification/standard Data31505-AWSA5.18-69 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Filler Metal Chemical Composition in Percent0.025 SULFUR NOMINAL FIFTH ELEMENT
ShapeROUND
Flux Coating TypeSHIELDED ARC
Current TypeAC
Weld Position for Which DesignedALL POSITIONS
Length36.000 INCHES NOMINAL IN
Physical FormSTRAIGHT
Outside Diameter0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5310-00-188-7938 INTERCHANGEABLE
Nut,plain,blind Rivet
5360-00-266-4910A675 INTERCHANGEABLE
Spring,helical,compression
Crane Co Div Valve Div
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.
3020-00-661-20849L76 INTERCHANGEABLE
Gear Cluster
Dynalec Corporation
5120-00-761-8109A675 INTERCHANGEABLE
Extractor
Ametek Inc Div Aerospace and Defense
3439-01-012-1003ER70S-3 INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-01-013-2800 INTERCHANGEABLE
Electrode,welding
2530-01-176-0562205-1012-001 INTERCHANGEABLE
Housing,steering Column
Macleod Inc
4320-01-182-6929A675 INTERCHANGEABLE
Propeller,centrifugal Pump
Circor Naval Solutions Llc Dba Warren Pumps
Cross-Reference Index
Part NumberManufacturer
A675 Messer Llc (USA)
AWS5-18-69T American Welding Society, Inc. (USA)
Related Parts
5310-00-188-7938INTERCHANGEABLE
NUT,PLAIN,BLIND RIVET
5360-00-266-4910INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A675
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
3020-00-661-2084INTERCHANGEABLE
GEAR CLUSTER
9L76
5120-00-761-8109INTERCHANGEABLE
EXTRACTOR
A675
3439-01-012-1003INTERCHANGEABLE
ELECTRODE,WELDING
ER70S-3
3439-01-013-2800INTERCHANGEABLE
ELECTRODE,WELDING
2530-01-176-0562INTERCHANGEABLE
HOUSING,STEERING COLUMN
205-1012-001
4320-01-182-6929INTERCHANGEABLE
PROPELLER,CENTRIFUGAL PUMP
A675

Frequently Asked Questions

What is NSN 3439-00-602-1544?

NSN 3439-00-602-1544 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 3439-00-602-1544?

NSN 3439-00-602-1544 has 2 cross-referenced part numbers: A675 (Messer Llc), AWS5-18-69T (American Welding Society, Inc.).

What NSN replaces 3439-00-602-1544?

There are 10 known substitutes for 3439-00-602-1544: 5310-00-188-7938, 5360-00-266-4910, 3439-00-372-4776 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A675?

Key specifications for A675: Filler Metal Chemical Composition in Percent: 0.025 PHOSPHOROUS NOMINAL FOURTH ELEMENT; Filler Metal Chemical Composition in Percent: 0.10 CARBON NOMINAL THIRD ELEMENT; Material: STEEL FILLER; Filler Metal Chemical Composition in Percent: 0.50 SILICON NOMINAL SECOND ELEMENT. 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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