The Welding Machine,arc, cataloged under National Stock Number 3431-01-261-9840, is classified within Federal Supply Class 3431 (Electric Arc Welding Equipment) of the Metalworking Machinery (continued) group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3431-01-261-9840
Item Name
Welding Machine,arc
FSC / FSG
3431 / 34 — Electric Arc Welding Equipment
Status
ACTIVE
Arc Current Type
AC OR DC
Output Current Rating in Amps
250.0 NOMINAL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
344-H-DA250
3/9Design control — primary reference
Air Products & Chemicals, Inc
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 3431-01-261-9840?
NSN 3431-01-261-9840 is a Welding Machine,arc, classified under FSC 3431, Electric Arc Welding Equipment. Status: active.
What are the specifications of 3431-01-261-9840?
Key specifications for 3431-01-261-9840: Arc Current Type: AC OR DC; Output Current Rating in Amps: 250.0 NOMINAL. 2 specifications are documented in the U.S. Government catalog.
Is NSN 3431-01-261-9840 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.