PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GR300SWelding Machine,arc

Hobart Bros Co · NSN 3431-00-273-3713 · FSC 3431 · No Item Name Available
Verified by PartsTable
NSN 3431-00-273-3713 — this item is cataloged by the U.S. Government under National Stock Number 3431-00-273-3713. Primary manufacturer part number: GR300S.
Features
  • Welding Machine,arc — FSC 3431
  • Tire Type: STEEL
  • Mounting Type: WHEEL
  • Maximum Current at Specified Voltage: 400 AMP AT 40V V
  • Output Current Type: DC
  • Arc Current Type: DC
  • Output Current Rating in Amps: 300.0 NOMINAL
  • Minimum Current at Specified Voltage: 50 AMP AT 20V V
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Welding Machine,arc, cataloged under National Stock Number 3431-00-273-3713, is classified within Federal Supply Class 3431 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Hobart Bros Co. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3431-00-273-3713
Primary Part NumberGR300S
Item NameWelding Machine,arc
FSC / FSG3431 / 34 — No Item Name Available
ManufacturerHobart Bros Co
StatusACTIVE
Tire TypeSTEEL
Mounting TypeWHEEL
Maximum Current at Specified Voltage400 AMP AT 40V V
Output Current TypeDC
Arc Current TypeDC
Output Current Rating in Amps300.0 NOMINAL
Minimum Current at Specified Voltage50 AMP AT 20V V
Output Voltage Rating in Volts115.0 NOMINAL
Design TypeGENERATOR
Engine Manufacturer Identifying NumberANY ACCEPTABLE
Power Output Rating3.0 KILOWATTS
Reference Number Differentiating CharacteristicsAAXX,ATJL,AYHQ,CDRZ
Wheel Quantity4
Engine Manufacturer NameANY ACCEPTABLE
Power SourceGASOLINE ENGINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3431-00-163-4345 INTERCHANGEABLE
Welding Machine,arc
3431-00-360-2790 INTERCHANGEABLE
Welding Machine,arc
Cross-Reference Index
Part NumberManufacturer
GR300S Hobart Bros Co (USA)
Related Parts
3431-00-163-4345INTERCHANGEABLE
WELDING MACHINE,ARC
3431-00-360-2790INTERCHANGEABLE
WELDING MACHINE,ARC

Frequently Asked Questions

What is NSN 3431-00-273-3713?

NSN 3431-00-273-3713 is a Welding Machine,arc, manufactured by Hobart Bros Co, classified under FSC 3431 (No Item Name Available). Status: active.

What are the part numbers for NSN 3431-00-273-3713?

NSN 3431-00-273-3713 has 1 cross-referenced part number: GR300S (Hobart Bros Co).

What NSN replaces 3431-00-273-3713?

There are 2 known substitutes for 3431-00-273-3713: 3431-00-163-4345, 3431-00-360-2790. Verify interchangeability with system specifications before substitution.

What are the specifications of GR300S?

Key specifications for GR300S: Tire Type: STEEL; Mounting Type: WHEEL; Maximum Current at Specified Voltage: 400 AMP AT 40V V; Output Current Type: DC. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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