PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

34AInsulator,nozzle

Tweco Products Inc · NSN 3439-01-260-5331 · FSC 3439 · No Item Name Available
Verified by PartsTable
NSN 3439-01-260-5331 — this item is cataloged by the U.S. Government under National Stock Number 3439-01-260-5331. Primary manufacturer part number: 34A.
Features
  • Insulator,nozzle — FSC 3439
  • General Characteristics Item Description: ADJUSTABLE;COLOR-BLACK;COMPONENT OF TWECO NO. 412 AIR COOLED MIG GUN
  • 2 verified cross-references
  • Primary manufacturer: Tweco Products Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulator,nozzle, cataloged under National Stock Number 3439-01-260-5331, is classified within Federal Supply Class 3439 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Tweco Products Inc. 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
NSN3439-01-260-5331
Primary Part Number34A
Item NameInsulator,nozzle
FSC / FSG3439 / 34 — No Item Name Available
ManufacturerTweco Products Inc
StatusACTIVE
General Characteristics Item DescriptionADJUSTABLE;COLOR-BLACK;COMPONENT OF TWECO NO. 412 AIR COOLED MIG GUN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5905-00-296-75093-4A INTERCHANGEABLE
Resistor,current Regulating
Amperite Co Inc
5331-00-315-926434A INTERCHANGEABLE
O-Ring
Wakmann Watch Company Inc
6625-01-210-3394196UE INTERCHANGEABLE
Indicator,phase Sequence
Sunshine Scientific Instrument Inc
5950-01-218-7879167777 INTERCHANGEABLE
Coil,electrical
Lockheed Martin Corporation Div Rms - Mitchel Field
6240-01-280-3382 INTERCHANGEABLE
Lamp,incandescent
6515-01-348-5285B1043 INTERCHANGEABLE
Bulb,keratometer
Lombart Brothers, Inc.
Cross-Reference Index
Part NumberManufacturer
34A PRIMARY Tweco Products Inc (USA)
1340-1100 Tweco Products Inc (USA)
Related Parts
5905-00-296-7509INTERCHANGEABLE
RESISTOR,CURRENT REGULATING
3-4A
5331-00-315-9264INTERCHANGEABLE
O-RING
34A
6625-01-210-3394INTERCHANGEABLE
INDICATOR,PHASE SEQUENCE
196UE
5950-01-218-7879INTERCHANGEABLE
COIL,ELECTRICAL
167777
6240-01-280-3382INTERCHANGEABLE
LAMP,INCANDESCENT
6515-01-348-5285INTERCHANGEABLE
BULB,KERATOMETER
B1043

Frequently Asked Questions

What is NSN 3439-01-260-5331?

NSN 3439-01-260-5331 is a Insulator,nozzle, manufactured by Tweco Products Inc, classified under FSC 3439 (No Item Name Available). Status: active.

What are the part numbers for NSN 3439-01-260-5331?

NSN 3439-01-260-5331 has 2 cross-referenced part numbers: 34A (Tweco Products Inc), 1340-1100 (Tweco Products Inc).

What NSN replaces 3439-01-260-5331?

There are 6 known substitutes for 3439-01-260-5331: 5905-00-296-7509, 5331-00-315-9264, 6625-01-210-3394 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 34A?

Key specifications for 34A: General Characteristics Item Description: ADJUSTABLE;COLOR-BLACK;COMPONENT OF TWECO NO. 412 AIR COOLED MIG GUN. 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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