NSN 3439-00-178-8596 · NIIN 001788596 · Part number AWSA5.9-77 ER349 0.125
American Welding Society, Inc. · FSC 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories · FSG 34 — Metalworking Machinery (continued) · CAGE 31505
Government record, cited
NSN 3439-00-178-8596 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-178-8596. Manufacturer of record part number: AWSA5.9-77 ER349 0.125.
Also searched as3439-00-178-8596 ·
3439001788596 ·
NIIN 001788596 ·
00-178-8596 ·
FSC 3439 Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories · CAGE 31505 · AWSA5.9-77 ER349 0.125 · AWS A5.9
Filler Metal Chemical Composition in Percent: 0.65 SILICON NOMINAL SEVENTH ELEMENT
Filler Metal Chemical Composition in Percent: 0.75 COPPER NOMINAL FIFTH ELEMENT
Filler Metal Chemical Composition in Percent: 0.13 CARBON NOMINAL EIGHTH ELEMENT
Filler Metal Chemical Composition in Percent: 0.65 MOLYBDENUM NOMINAL SIXTH ELEMENT
Filler Metal Chemical Composition in Percent: 2.50 MANGANESE NOMINAL FOURTH ELEMENT
Filler Metal Chemical Composition in Percent: 21.00 CHROMIUM NOMINAL SECOND ELEMENT
Identification
NSN: 3439-00-178-8596
NIIN: 001788596
FSC: 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
FSG: 34 — Metalworking Machinery (continued)
Primary part number: AWSA5.9-77 ER349 0.125
Manufacturer: American Welding Society, Inc.
General Description
The Rod,welding, cataloged under National Stock Number 3439-00-178-8596, is classified within Federal Supply Class 3439 (Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories) of the Metalworking Machinery (continued) group. The manufacturer of record is American Welding Society, Inc.. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3439-00-178-8596
Primary Part Number
AWSA5.9-77 ER349 0.125
Item Name
Rod,welding
FSC / FSG
3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
Manufacturer
American Welding Society, Inc.
Status
ACTIVE
Length
36.000 INCHES NOMINAL IN
Filler Metal Chemical Composition in Percent
0.65 SILICON NOMINAL SEVENTH ELEMENT
Filler Metal Chemical Composition in Percent
0.75 COPPER NOMINAL FIFTH ELEMENT
Filler Metal Chemical Composition in Percent
0.13 CARBON NOMINAL EIGHTH ELEMENT
Filler Metal Chemical Composition in Percent
0.65 MOLYBDENUM NOMINAL SIXTH ELEMENT
Filler Metal Chemical Composition in Percent
2.50 MANGANESE NOMINAL FOURTH ELEMENT
Filler Metal Chemical Composition in Percent
21.00 CHROMIUM NOMINAL SECOND ELEMENT
Filler Metal Chemical Composition in Percent
65.00 IRON NOMINAL FIRST ELEMENT
Filler Metal Chemical Composition in Percent
9.50 NICKEL NOMINAL THIRD ELEMENT
Weld Position for Which Designed
ALL POSITIONS
Material Document and Classification
AWSA5.9-77,CL ER349 ASSN STD SINGLE MATERIAL RESPONSE FILLER
Shape
ROUND
Outside Diameter
0.125 INCHES NOMINAL IN
Process Type for Which Designed
OXYACETYLENE
Physical Form
STRAIGHT
Material
STEEL FILLER
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
⇄Related Items11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3439-00-200-1379AWSA5.9-77 ER 347 0.062POSSIBLE MATCH
ROD,WELDING
Possible match (shared part number)American Welding Society, Inc.
3439-00-200-1380AWSA5.9-17 ER310 0.062POSSIBLE MATCH
ROD,WELDING
Possible match (shared part number)American Welding Society, Inc.
3439-00-246-0575POSSIBLE MATCH
ROD,WELDING
Possible match (shared part number)
3439-00-246-0576AWSA5.9-77 ER 347POSSIBLE MATCH
ROD,WELDING
Possible match (shared part number)American Welding Society, Inc.
3439-00-246-0577AWSA5.9 ER 347 0.125POSSIBLE MATCH
ROD,WELDING
Possible match (shared part number)American Welding Society, Inc.
3439-00-288-1469AWSA5.9-77 ER 310 0.125POSSIBLE MATCH
ROD,WELDING
Possible match (shared part number)American Welding Society, Inc.
3439-00-288-1471AWSA5.9-81 ER347 0.156POSSIBLE MATCH
ROD,WELDING
Possible match (shared part number)American Welding Society, Inc.
3439-00-288-5645AWSA5.9-77 ER 309 0.062POSSIBLE MATCH
ROD,WELDING
Possible match (shared part number)American Welding Society, Inc.
3439-00-393-0929AWSA5.9-77 ER316 0.031 25 LBPOSSIBLE MATCH
ROD,WELDING
Possible match (shared part number)American Welding Society, Inc.
3439-00-529-0743AWSA5.9-81 ER347 0.062POSSIBLE MATCH
ROD,WELDING
Possible match (shared part number)American Welding Society, Inc.
NSN 3439-00-178-8596 is a Rod,welding, manufactured by American Welding Society, Inc., classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
What part numbers are listed for NSN 3439-00-178-8596?
NSN 3439-00-178-8596 has 1 manufacturer part number on file: AWSA5.9-77 ER349 0.125 (American Welding Society, Inc.).
What NSN replaces 3439-00-178-8596?
11 possible matches (shared part number, not a government interchangeability claim): 3439-00-200-1379, 3439-00-200-1380, 3439-00-246-0575. Verify interchangeability with system specifications before substitution.
What are the specifications of AWSA5.9-77 ER349 0.125?
Key specifications for AWSA5.9-77 ER349 0.125: Length: 36.000 INCHES NOMINAL IN; Filler Metal Chemical Composition in Percent: 0.65 SILICON NOMINAL SEVENTH ELEMENT; Filler Metal Chemical Composition in Percent: 0.75 COPPER NOMINAL FIFTH ELEMENT; Filler Metal Chemical Composition in Percent: 0.13 CARBON NOMINAL EIGHTH ELEMENT. 16 specifications are documented in the U.S. Government catalog.
Is NSN 3439-00-178-8596 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.