PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

907321Welding Machine,arc

Miller Electric Mfg. Llc · NSN 3431-01-251-0442 · FSC 3431 · No Item Name Available
Verified by PartsTable
NSN 3431-01-251-0442 — this item is cataloged by the U.S. Government under National Stock Number 3431-01-251-0442. Primary manufacturer part number: 907321.
Features
  • Welding Machine,arc — FSC 3431
  • Design Type: TRANSFORMER
  • Arc Current Type: DC
  • Transformer Phase: SINGLE
  • Wheel Quantity: 4
  • Transformer Primary Voltage in Volts: 230.0
  • Mounting Type: WHEEL
  • Output Current Rating in Amps: 200.0 NOMINAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Welding Machine,arc, cataloged under National Stock Number 3431-01-251-0442, is classified within Federal Supply Class 3431 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Miller Electric Mfg. Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3431-01-251-0442
Primary Part Number907321
Item NameWelding Machine,arc
FSC / FSG3431 / 34 — No Item Name Available
ManufacturerMiller Electric Mfg. Llc
StatusCANCELLED
Design TypeTRANSFORMER
Arc Current TypeDC
Transformer PhaseSINGLE
Wheel Quantity4
Transformer Primary Voltage in Volts230.0
Mounting TypeWHEEL
Output Current Rating in Amps200.0 NOMINAL
Tire TypeSOLID RUBBER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5315-00-664-49930048291 INTERCHANGEABLE
Pin,grooved,headless
New Holland Construction
4730-00-809-9427 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-01-301-8395907321 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Vacu-Blast Corp
5930-01-534-230622210NL2224010 INTERCHANGEABLE
Switch,thermostatic
Detroit Switch Inc Dba Detroit Switch Inc
5985-01-601-8699903355 INTERCHANGEABLE
Mast Section
The Will-Burt Company Div Assembly
Cross-Reference Index
Part NumberManufacturer
ILLERMATIC 502 Miller Electric Mfg. Llc (USA)
903 355 Miller Electric Mfg. Co. (USA)
048 291 Miller Electric Mfg. Co. (USA)
903 868 Miller Electric Mfg. Co. (USA)
MILLERMATIC 35 Miller Electric Mfg. Co. (USA)
907321 Miller Electric Mfg. Co. (USA)
MILLERMATIC 200 Miller Electric Mfg. Co. (USA)
MILLERMATIC 251 Miller Electric Mfg. Co. (USA)
907321 PRIMARY Miller Electric Mfg. Llc (USA)
057-436 Miller Electric Mfg. Co. (USA)
ILLERMATIC 502 Miller Electric Mfg. Co. (USA)
Related Parts
5315-00-664-4993INTERCHANGEABLE
PIN,GROOVED,HEADLESS
0048291
4730-00-809-9427INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-01-301-8395INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
907321
5930-01-534-2306INTERCHANGEABLE
SWITCH,THERMOSTATIC
22210NL2224010
5985-01-601-8699INTERCHANGEABLE
MAST SECTION
903355

Frequently Asked Questions

What is NSN 3431-01-251-0442?

NSN 3431-01-251-0442 is a Welding Machine,arc, manufactured by Miller Electric Mfg. Llc, classified under FSC 3431 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3431-01-251-0442?

NSN 3431-01-251-0442 has 11 cross-referenced part numbers: ILLERMATIC 502 (Miller Electric Mfg. Llc), 903 355 (Miller Electric Mfg. Co.), 048 291 (Miller Electric Mfg. Co.), 903 868 (Miller Electric Mfg. Co.), MILLERMATIC 35 (Miller Electric Mfg. Co.) and 6 more.

What NSN replaces 3431-01-251-0442?

There are 5 known substitutes for 3431-01-251-0442: 5315-00-664-4993, 4730-00-809-9427, 4730-01-301-8395 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 907321?

Key specifications for 907321: Design Type: TRANSFORMER; Arc Current Type: DC; Transformer Phase: SINGLE; Wheel Quantity: 4. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3431-01-251-0442 still in active supply?

NSN 3431-01-251-0442 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com