PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MK3AWelding Set Arc

M K Products Inc · NSN 3431-01-004-2747 · FSC 3431 · No Item Name Available
Verified by PartsTable
NSN 3431-01-004-2747 — this item is cataloged by the U.S. Government under National Stock Number 3431-01-004-2747. Primary manufacturer part number: MK3A.
Features
  • Welding Set Arc — FSC 3431
  • General Characteristics Item Description: 300 AMP;115 VAC;50/60 HERTZ;0.030TO 0.063 WIRE DIA VAC
  • 1 verified cross-reference
  • Primary manufacturer: M K Products Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Welding Set Arc, cataloged under National Stock Number 3431-01-004-2747, is classified within Federal Supply Class 3431 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is M K Products Inc. Government technical data includes 1 verified specification, 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
NSN3431-01-004-2747
Primary Part NumberMK3A
Item NameWelding Set Arc
FSC / FSG3431 / 34 — No Item Name Available
ManufacturerM K Products Inc
StatusACTIVE
General Characteristics Item Description300 AMP;115 VAC;50/60 HERTZ;0.030TO 0.063 WIRE DIA VAC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4920-00-133-9751 INTERCHANGEABLE
Test Stand,hydraulic System Comp
4920-00-528-8780 INTERCHANGEABLE
Test Stand,hydraulic System Comp
Cross-Reference Index
Part NumberManufacturer
MK3A PRIMARY M K Products Inc (USA)
Related Parts
4920-00-133-9751INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP
4920-00-528-8780INTERCHANGEABLE
TEST STAND,HYDRAULIC SYSTEM COMP

Frequently Asked Questions

What is NSN 3431-01-004-2747?

NSN 3431-01-004-2747 is a Welding Set Arc, manufactured by M K Products Inc, classified under FSC 3431 (No Item Name Available). Status: active.

What are the part numbers for NSN 3431-01-004-2747?

NSN 3431-01-004-2747 has 1 cross-referenced part number: MK3A (M K Products Inc).

What NSN replaces 3431-01-004-2747?

There are 2 known substitutes for 3431-01-004-2747: 4920-00-133-9751, 4920-00-528-8780. Verify interchangeability with system specifications before substitution.

What are the specifications of MK3A?

Key specifications for MK3A: General Characteristics Item Description: 300 AMP;115 VAC;50/60 HERTZ;0.030TO 0.063 WIRE DIA VAC. 1 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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