PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10N50Cup,welding Torch

Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng · NSN 3439-00-443-9578 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-00-443-9578 — this item is cataloged by the U.S. Government under National Stock Number 3439-00-443-9578. Primary manufacturer part number: 10N50.
Features
  • Cup,welding Torch — FSC 3439
  • General Characteristics Item Description: ALUMINA; 1-27/32 IN. LG; 5/8 IN. OD; SIZE NO. 4; 1/4 IN. ORIFICE 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 Cup,welding Torch, cataloged under National Stock Number 3439-00-443-9578, is classified within Federal Supply Class 3439 (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
NSN3439-00-443-9578
Primary Part Number10N50
Item NameCup,welding Torch
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerEsab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
StatusACTIVE
General Characteristics Item DescriptionALUMINA; 1-27/32 IN. LG; 5/8 IN. OD; SIZE NO. 4; 1/4 IN. ORIFICE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5305-00-140-0242 INTERCHANGEABLE
Screw,machine
5355-00-404-19001700-4 INTERCHANGEABLE
Pointer Assembly
Mission Systems Davenport Inc.
5355-01-157-6911295362-1 INTERCHANGEABLE
Knob
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
4730-01-192-3495017004 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Caterpillar Inc Div Caterpillar Defense
4220-01-237-3250545-011 INTERCHANGEABLE
Clamp,neck
Kirby Morgan Dive Systems Inc
6850-01-251-1542 INTERCHANGEABLE
Cleaning Compound,solvent
3120-01-268-007017-004 INTERCHANGEABLE
Bearing,washer,thrust
Deublin Company, Llc
5310-01-272-2494991 7004 INTERCHANGEABLE
Nut,self-Locking,hexagon
Hiab Usa Inc
5340-01-381-662117004 INTERCHANGEABLE
Clamp,loop
Liftking Manufacturing Corp
6515-01-588-9891201.358.97 INTERCHANGEABLE
Screw,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
WT0329 Sj Andrew & Sons (GBR)
10N50 L-Tec Welding and Cutting Systems (USA)
10N50 Merkle (uk) Limited (GBR)
17004 Standard Welders Equipment Corporation (USA)
10N50 Sj Andrew & Sons (GBR)
10N50 PRIMARY Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng (USA)
10N50 Union Carbide Corp Sub of Dow Co the (USA)
Related Parts
5305-00-140-0242INTERCHANGEABLE
SCREW,MACHINE
5355-00-404-1900INTERCHANGEABLE
POINTER ASSEMBLY
1700-4
5355-01-157-6911INTERCHANGEABLE
KNOB
295362-1
4730-01-192-3495INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
017004
4220-01-237-3250INTERCHANGEABLE
CLAMP,NECK
545-011
6850-01-251-1542INTERCHANGEABLE
CLEANING COMPOUND,SOLVENT
3120-01-268-0070INTERCHANGEABLE
BEARING,WASHER,THRUST
17-004
5310-01-272-2494INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
991 7004
5340-01-381-6621INTERCHANGEABLE
CLAMP,LOOP
17004
6515-01-588-9891INTERCHANGEABLE
SCREW,BONE
201.358.97
7520-01-606-0694INTERCHANGEABLE
CHART,HOLDER
7100051981

Frequently Asked Questions

What is NSN 3439-00-443-9578?

NSN 3439-00-443-9578 is a Cup,welding Torch, manufactured by Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng, classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-00-443-9578?

NSN 3439-00-443-9578 has 7 cross-referenced part numbers: WT0329 (Sj Andrew & Sons), 10N50 (L-Tec Welding and Cutting Systems), 10N50 (Merkle (uk) Limited), 17004 (Standard Welders Equipment Corporation), 10N50 (Sj Andrew & Sons) and 2 more.

What NSN replaces 3439-00-443-9578?

There are 11 known substitutes for 3439-00-443-9578: 5305-00-140-0242, 5355-00-404-1900, 5355-01-157-6911 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10N50?

Key specifications for 10N50: End Item Identification: UNION CARBIDE MODEL HW-17,18 AND 26 TORCH; General Characteristics Item Description: ALUMINA; 1-27/32 IN. LG; 5/8 IN. OD; SIZE NO. 4; 1/4 IN. ORIFICE IN. 2 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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