PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L4A-15Guide,wire,gas Shielded Arc Weld

Bernard Welding · NSN 3431-01-631-6975 · FSC 3431 · No Item Name Available
Verified by PartsTable
NSN 3431-01-631-6975 — this item is cataloged by the U.S. Government under National Stock Number 3431-01-631-6975. Primary manufacturer part number: L4A-15.
Features
  • Guide,wire,gas Shielded Arc Weld — FSC 3431
  • Wire Diameter: 0.0625 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Bernard Welding
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
General Description

The Guide,wire,gas Shielded Arc Weld, cataloged under National Stock Number 3431-01-631-6975, is classified within Federal Supply Class 3431 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Bernard Welding. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3431-01-631-6975
Primary Part NumberL4A-15
Item NameGuide,wire,gas Shielded Arc Weld
FSC / FSG3431 / 34 — No Item Name Available
ManufacturerBernard Welding
StatusACTIVE
Wire Diameter0.0625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4730-00-073-5956 INTERCHANGEABLE
Adapter,straight,tube to Hose
6135-00-170-881944115 INTERCHANGEABLE
Battery,nonrechargeable
Megger Ltd
5133-00-189-9290 INTERCHANGEABLE
Drill,twist
5950-00-645-959144-115 INTERCHANGEABLE
Reactor
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5365-01-299-744944115 INTERCHANGEABLE
Spacer,ring
Bourns Inc
7025-01-642-226544115 INTERCHANGEABLE
Support,display Unit
Gamma Scientific Inc
Cross-Reference Index
Part NumberManufacturer
L4A-15 PRIMARY Bernard Welding (USA)
44115 Bernard Welding (USA)
Related Parts
4730-00-073-5956INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
6135-00-170-8819INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
44115
5133-00-189-9290INTERCHANGEABLE
DRILL,TWIST
5950-00-645-9591INTERCHANGEABLE
REACTOR
44-115
5365-01-299-7449INTERCHANGEABLE
SPACER,RING
44115
7025-01-642-2265INTERCHANGEABLE
SUPPORT,DISPLAY UNIT
44115

Frequently Asked Questions

What is NSN 3431-01-631-6975?

NSN 3431-01-631-6975 is a Guide,wire,gas Shielded Arc Weld, manufactured by Bernard Welding, classified under FSC 3431 (No Item Name Available). Status: active.

What are the part numbers for NSN 3431-01-631-6975?

NSN 3431-01-631-6975 has 2 cross-referenced part numbers: L4A-15 (Bernard Welding), 44115 (Bernard Welding).

What NSN replaces 3431-01-631-6975?

There are 6 known substitutes for 3431-01-631-6975: 4730-00-073-5956, 6135-00-170-8819, 5133-00-189-9290 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L4A-15?

Key specifications for L4A-15: End Item Identification: 4940016011928; Overall Length: 180.0 INCHES NOMINAL IN; Wire Diameter: 0.0625 INCHES NOMINAL IN. 3 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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