PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

440-90Ion Chamber

Heico Ohmite Llc Dba Ohmite Mfg Co Inc · NSN 6665-00-728-2104 · FSC 6665 · No Item Name Available
Verified by PartsTable
NSN 6665-00-728-2104 — this item is cataloged by the U.S. Government under National Stock Number 6665-00-728-2104. Primary manufacturer part number: 440-90.
Features
  • Ion Chamber — FSC 6665
  • 1 verified cross-reference
  • Primary manufacturer: Heico Ohmite Llc Dba Ohmite Mfg Co Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ion Chamber, cataloged under National Stock Number 6665-00-728-2104, is classified within Federal Supply Class 6665 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Heico Ohmite Llc Dba Ohmite Mfg Co Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameIon Chamber
FSC / FSG6665 — No Item Name Available (FSG 66)
ManufacturersHeico Ohmite Llc Dba Ohmite Mfg Co Inc (CAGE 63060)
Technical Specifications
ParameterValue
NSN6665-00-728-2104
Primary Part Number440-90
Item NameIon Chamber
FSC / FSG6665 / 66 — No Item Name Available
ManufacturerHeico Ohmite Llc Dba Ohmite Mfg Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5133-00-189-9265 INTERCHANGEABLE
Drill,twist
5330-00-344-5621318843PC3 INTERCHANGEABLE
Gasket
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
7920-00-514-241744090 INTERCHANGEABLE
Brush,acid Swabbing
Weiler Corporation
5977-00-922-591044090 INTERCHANGEABLE
Holder,electrical Contact Brush
L3harris Technologies, Inc Div Space & Airborne Systems
5305-01-586-623244090 INTERCHANGEABLE
Screw,cap,socket Head
Safety Socket Llc
Cross-Reference Index
Part NumberManufacturer
440-90 Heico Ohmite Llc Dba Ohmite Mfg Co Inc (USA)
Related Parts
5133-00-189-9265INTERCHANGEABLE
DRILL,TWIST
5330-00-344-5621INTERCHANGEABLE
GASKET
318843PC3
7920-00-514-2417INTERCHANGEABLE
BRUSH,ACID SWABBING
44090
5977-00-922-5910INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
44090
5305-01-586-6232INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
44090

Frequently Asked Questions

What is NSN 6665-00-728-2104?

NSN 6665-00-728-2104 is a Ion Chamber, manufactured by Heico Ohmite Llc Dba Ohmite Mfg Co Inc, classified under FSC 6665 (No Item Name Available). Status: active.

What are the part numbers for NSN 6665-00-728-2104?

NSN 6665-00-728-2104 has 1 cross-referenced part number: 440-90 (Heico Ohmite Llc Dba Ohmite Mfg Co Inc).

What NSN replaces 6665-00-728-2104?

There are 5 known substitutes for 6665-00-728-2104: 5133-00-189-9265, 5330-00-344-5621, 7920-00-514-2417 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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