PartsTable TECHNICAL DATA SHEET
NSN 3431-01-110-7666Government record, cited

Weld Head, Internal Tube3431-01-110-7666

NSN 3431-01-110-7666 · NIIN 011107666 · Part number 2042
Astro-Arc Co · FSC 3431 — Electric Arc Welding Equipment · FSG 34 — Metalworking Machinery (continued) · CAGE 31677
Government record, cited
NSN 3431-01-110-7666 — this item is cataloged by the U.S. Government under National Stock Number 3431-01-110-7666. Manufacturer of record part number: 2042.
Also searched as  3431-01-110-7666 · 3431011107666 · NIIN 011107666 · 01-110-7666 · FSC 3431 Electric Arc Welding Equipment · CAGE 31677 · 2042 · 3431-0000-0000
Nearby stock numbers  ·
Features
  • Weld Head,internal Tube — FSC 3431
  • General Characteristics Item Description: ACCOMODATES 1-1/4 TO 1-1/2 IN. TUBE SIZE IN
  • 1 manufacturer part number on file
  • Manufacturer of record: Astro-Arc Co
Identification
  • NSN: 3431-01-110-7666
  • NIIN: 011107666
  • FSC: 3431 — Electric Arc Welding Equipment
  • FSG: 34 — Metalworking Machinery (continued)
  • Primary part number: 2042
  • Manufacturer: Astro-Arc Co
General Description

The Weld Head,internal Tube, cataloged under National Stock Number 3431-01-110-7666, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. The manufacturer of record is Astro-Arc Co. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3431-01-110-7666
Primary Part Number2042
Item NameWeld Head,internal Tube
FSC / FSG3431 / 34 — Electric Arc Welding Equipment
ManufacturerAstro-Arc Co
StatusACTIVE
General Characteristics Item DescriptionACCOMODATES 1-1/4 TO 1-1/2 IN. TUBE SIZE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
2042 PRIMARY Astro-Arc Co (USA)
Reference documents
ReferenceMeaning
3431-0000-0000 6/9 Informative reference only
U.S. Government activity
No interchangeability data on file.
Other items in FSC 3431 — Electric Arc Welding Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3431-00-008-9353
3431-00-008-9353 · Item name not on file
3431-00-010-5596
LINER,NITROGEN CONDUIT
3431-00-010-5597
LINER,NITROGEN COND
3431-00-010-5599
3431-00-010-5599 · Item name not on file
3431-00-012-4357
3431-00-012-4357 · Item name not on file
3431-00-012-4360
3431-00-012-4360 · Item name not on file
3431-00-012-4362
SPARK GAP ASSEMBLY
3431-00-015-2564
PANEL,POWER,ALTERNATE

Frequently Asked Questions

What is NSN 3431-01-110-7666?

NSN 3431-01-110-7666 is a Weld Head,internal Tube, manufactured by Astro-Arc Co, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.

What part numbers are listed for NSN 3431-01-110-7666?

NSN 3431-01-110-7666 has 1 manufacturer part number on file: 2042 (Astro-Arc Co).

What are the specifications of 2042?

Key specifications for 2042: General Characteristics Item Description: ACCOMODATES 1-1/4 TO 1-1/2 IN. TUBE SIZE IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 3431-01-110-7666 hazardous material?

No hazard code in the DLA record (HMIC N). 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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