PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45V45Collet Body,welding Torch

Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng · NSN 3431-00-123-6684 · FSC 3431 · No Item Name Available
Verified by PartsTable
NSN 3431-00-123-6684 — this item is cataloged by the U.S. Government under National Stock Number 3431-00-123-6684. Primary manufacturer part number: 45V45.
Features
  • Collet Body,welding Torch — FSC 3431
  • Electrode Diameter for Which Designed: 0.125 INCHES NOMINAL IN
  • 7 verified cross-references
  • Primary manufacturer: Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Collet Body,welding Torch, cataloged under National Stock Number 3431-00-123-6684, is classified within Federal Supply Class 3431 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3431-00-123-6684
Primary Part Number45V45
Item NameCollet Body,welding Torch
FSC / FSG3431 / 34 — No Item Name Available
ManufacturerEsab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
StatusACTIVE
Electrode Diameter for Which Designed0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5342-00-211-9791 INTERCHANGEABLE
Hook Installation Kit
5950-00-256-8971CE213246 INTERCHANGEABLE
Transformer,power
National Security Agency
3110-00-554-5406105ATF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5930-00-696-28222050-4 INTERCHANGEABLE
Switch,pressure
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
3020-00-784-086620504 INTERCHANGEABLE
Gear,spur
Naval Inventory Control Point Mechanicsburg
5315-01-068-697920504 INTERCHANGEABLE
Rod
Barksdale, Inc
2815-01-074-827322205 INTERCHANGEABLE
Injector Assembly,f
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5940-01-230-8545 INTERCHANGEABLE
Terminal,v Bus
5330-01-399-165520504 INTERCHANGEABLE
Retainer,packing
Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val
5985-01-541-559620504 INTERCHANGEABLE
Waveguide Assembly
Fisica Applied Technologies, Inc. Div Randtron Antenna Systems
Cross-Reference Index
Part NumberManufacturer
45V45 Merkle (uk) Limited (GBR)
45V45 Union Carbide Corp Sub of Dow Co the (USA)
45V45 PRIMARY Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng (USA)
20504 Standard Welders Equipment Corporation (USA)
45V45 L-Tec Welding and Cutting Systems (USA)
45V45 Cni Ceramic Nozzles Inc Dba Cni (USA)
45V45 Standard Welders Equipment Corporation (USA)
Related Parts
5342-00-211-9791INTERCHANGEABLE
HOOK INSTALLATION KIT
5950-00-256-8971INTERCHANGEABLE
TRANSFORMER,POWER
CE213246
3110-00-554-5406INTERCHANGEABLE
BEARING,BALL,ANNULAR
105ATF
5930-00-696-2822INTERCHANGEABLE
SWITCH,PRESSURE
2050-4
3020-00-784-0866INTERCHANGEABLE
GEAR,SPUR
20504
5315-01-068-6979INTERCHANGEABLE
ROD
20504
2815-01-074-8273INTERCHANGEABLE
INJECTOR ASSEMBLY,F
22205
5940-01-230-8545INTERCHANGEABLE
TERMINAL,V BUS
5330-01-399-1655INTERCHANGEABLE
RETAINER,PACKING
20504
5985-01-541-5596INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
20504
5920-01-693-2327INTERCHANGEABLE
FUSEHOLDER,BLOCK
20504

Frequently Asked Questions

What is NSN 3431-00-123-6684?

NSN 3431-00-123-6684 is a Collet Body,welding Torch, manufactured by Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng, classified under FSC 3431 (No Item Name Available). Status: active.

What are the part numbers for NSN 3431-00-123-6684?

NSN 3431-00-123-6684 has 7 cross-referenced part numbers: 45V45 (Merkle (uk) Limited), 45V45 (Union Carbide Corp Sub of Dow Co the), 45V45 (Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng), 20504 (Standard Welders Equipment Corporation), 45V45 (L-Tec Welding and Cutting Systems) and 2 more.

What NSN replaces 3431-00-123-6684?

There are 11 known substitutes for 3431-00-123-6684: 5342-00-211-9791, 5950-00-256-8971, 3110-00-554-5406 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45V45?

Key specifications for 45V45: Special Features: GAS LENS; Electrode Diameter for Which Designed: 0.125 INCHES NOMINAL IN; End Item Identification: TORCH,L-TEC,MODEL HW-20,HW-25. 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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