PartsTable TECHNICAL DATA SHEET
NSN 3439-01-668-8656Government record, cited

Electrode, Welding3439-01-668-8656

NSN 3439-01-668-8656 · NIIN 016688656 · Part number 040X7C2-MS
Matheson Tri-Gas, Inc. · FSC 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories · FSG 34 — Metalworking Machinery (continued) · CAGE 4H3T9
Government record, cited
NSN 3439-01-668-8656 — this item is cataloged by the U.S. Government under National Stock Number 3439-01-668-8656. Manufacturer of record part number: 040X7C2-MS.
Also searched as  3439-01-668-8656 · 3439016688656 · NIIN 016688656 · 01-668-8656 · FSC 3439 Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories · CAGE 4H3T9 · 040X7C2-MS
Nearby stock numbers  ·
Features
  • Electrode,welding — FSC 3439
  • Length: 175.0 MILLIMETERS NOMINAL MM
  • Width: 4.0 MILLIMETERS NOMINAL MM
  • 3 manufacturer part numbers on file
  • Manufacturer of record: Matheson Tri-Gas, Inc.
Identification
  • NSN: 3439-01-668-8656
  • NIIN: 016688656
  • FSC: 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
  • FSG: 34 — Metalworking Machinery (continued)
  • Primary part number: 040X7C2-MS
  • Manufacturer: Matheson Tri-Gas, Inc.
General Description

The Electrode,welding, cataloged under National Stock Number 3439-01-668-8656, 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 Matheson Tri-Gas, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3439-01-668-8656
Primary Part Number040X7C2-MS
Item NameElectrode,welding
FSC / FSG3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
ManufacturerMatheson Tri-Gas, Inc.
StatusACTIVE
Length175.0 MILLIMETERS NOMINAL MM
Width4.0 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardHazardous per DLA record (HMIC Y)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
040X7C2-MS Miller Electric Mfg. Llc (USA)
040X7C2-MS PRIMARY Matheson Tri-Gas, Inc. (USA)
040X7C2-MS Airgas Usa, Llc (USA)
No interchangeability data on file.
Other items in FSC 3439 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3439-00-001-0002
3439-00-001-0002 · Item name not on file
3439-00-001-4196
3439-00-001-4196 · Item name not on file
3439-00-001-4197
3439-00-001-4197 · Item name not on file
3439-00-003-1195
3439-00-003-1195 · Item name not on file
3439-00-003-8601
SOLDER,LEAD ALLOY
3439-00-003-8602
SOLDER,LEAD-TIN ALLOY
3439-00-004-0913
HOUSING,ELECTRIC SO
3439-00-004-0915
SOLDERING GUN

Frequently Asked Questions

What is NSN 3439-01-668-8656?

NSN 3439-01-668-8656 is a Electrode,welding, manufactured by Matheson Tri-Gas, Inc., classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.

What part numbers are listed for NSN 3439-01-668-8656?

NSN 3439-01-668-8656 has 3 manufacturer part numbers on file: 040X7C2-MS (Miller Electric Mfg. Llc), 040X7C2-MS (Matheson Tri-Gas, Inc.), 040X7C2-MS (Airgas Usa, Llc).

What are the specifications of 040X7C2-MS?

Key specifications for 040X7C2-MS: Length: 175.0 MILLIMETERS NOMINAL MM; Special Features: PURPLE IN COLOR; Width: 4.0 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: ELECTRODES. 2 specifications are documented in the U.S. Government catalog.

Is NSN 3439-01-668-8656 hazardous material?

Hazardous per DLA record (HMIC Y). 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.
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