PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R3R-300Welding Machine,arc

Lincoln Electric Holdings Inc · NSN 3431-01-168-8466 · FSC 3431 · No Item Name Available
Verified by PartsTable
NSN 3431-01-168-8466 — this item is cataloged by the U.S. Government under National Stock Number 3431-01-168-8466. Primary manufacturer part number: R3R-300.
Features
  • Welding Machine,arc — FSC 3431
  • Design Type: GENERATOR
  • Arc Current Type: AC
  • Maximum Current at Specified Voltage: 300 AMP AT 32 V V
  • Output Current Rating in Amps: 300.0 NOMINAL
  • Minimum Current at Specified Voltage: 200 AMP AT 32 V V
  • Frequency in Hertz: 60.0
  • Voltage in Volts: 230.0 OR 460.0
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Welding Machine,arc, cataloged under National Stock Number 3431-01-168-8466, is classified within Federal Supply Class 3431 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Lincoln Electric Holdings Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN3431-01-168-8466
Primary Part NumberR3R-300
Item NameWelding Machine,arc
FSC / FSG3431 / 34 — No Item Name Available
ManufacturerLincoln Electric Holdings Inc
StatusCANCELLED
Design TypeGENERATOR
Arc Current TypeAC
Maximum Current at Specified Voltage300 AMP AT 32 V V
Output Current Rating in Amps300.0 NOMINAL
Minimum Current at Specified Voltage200 AMP AT 32 V V
Frequency in Hertz60.0
Voltage in Volts230.0 OR 460.0
PhaseTHREE
Current TypeAC OR DC
Power SourceELECTRIC MOTOR
Mounting TypeSKID
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5950-00-228-8679R300S INTERCHANGEABLE
Coil,radio Frequency
Viking Technologies, Ltd.
5950-00-648-011311981ITEM2 INTERCHANGEABLE
Coil,radio Frequency
Microwave Engineering Corporation
5950-00-648-27353300-30767 INTERCHANGEABLE
Coil,radio Frequency
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
5935-00-681-5616031-0052-0001 INTERCHANGEABLE
Connector,receptacle,electrical
Te Connectivity Corporation Dba Microdot Products
5950-01-062-87142515453-1 INTERCHANGEABLE
Coil,radio Frequency
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
R3R-300 Lincoln Electric Holdings Inc (USA)
300SS Miller Electric Mfg. Co. (USA)
CC-301 SS Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng (USA)
R-300-S Hobart Bros Co (USA)
CC-301 SS L-Tec Welding and Cutting Systems (USA)
Related Parts
5950-00-228-8679INTERCHANGEABLE
COIL,RADIO FREQUENCY
R300S
5950-00-648-0113INTERCHANGEABLE
COIL,RADIO FREQUENCY
11981ITEM2
5950-00-648-2735INTERCHANGEABLE
COIL,RADIO FREQUENCY
3300-30767
5935-00-681-5616INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
031-0052-0001
5950-01-062-8714INTERCHANGEABLE
COIL,RADIO FREQUENCY
2515453-1

Frequently Asked Questions

What is NSN 3431-01-168-8466?

NSN 3431-01-168-8466 is a Welding Machine,arc, manufactured by Lincoln Electric Holdings Inc, classified under FSC 3431 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3431-01-168-8466?

NSN 3431-01-168-8466 has 5 cross-referenced part numbers: R3R-300 (Lincoln Electric Holdings Inc), 300SS (Miller Electric Mfg. Co.), CC-301 SS (Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng), R-300-S (Hobart Bros Co), CC-301 SS (L-Tec Welding and Cutting Systems).

What NSN replaces 3431-01-168-8466?

There are 5 known substitutes for 3431-01-168-8466: 5950-00-228-8679, 5950-00-648-0113, 5950-00-648-2735 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R3R-300?

Key specifications for R3R-300: Design Type: GENERATOR; Arc Current Type: AC; Maximum Current at Specified Voltage: 300 AMP AT 32 V V; Output Current Rating in Amps: 300.0 NOMINAL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3431-01-168-8466 still in active supply?

NSN 3431-01-168-8466 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.
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