PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

44004Flame Detector Subassembly

Meggitt (new Hampshire), Inc · NSN 6665-01-039-5751 · FSC 6665 · No Item Name Available
Verified by PartsTable
NSN 6665-01-039-5751 — this item is cataloged by the U.S. Government under National Stock Number 6665-01-039-5751. Primary manufacturer part number: 44004.
Features
  • Flame Detector Subassembly — FSC 6665
  • General Characteristics Item Description: C/O 2 CIRCUIT CARD ASSY AND 3 SPACERS,INCL ULTRAVIOLET LIGHT DETECTOR,APPROX O/A DIM. 3.250 IN. LG BY 4.188 IN. DIA IN
  • 1 verified cross-reference
  • Primary manufacturer: Meggitt (new Hampshire), Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Flame Detector Subassembly, cataloged under National Stock Number 6665-01-039-5751, is classified within Federal Supply Class 6665 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Meggitt (new Hampshire), Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). 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: Cancelled.

Technical Specifications
ParameterValue
NSN6665-01-039-5751
Primary Part Number44004
Item NameFlame Detector Subassembly
FSC / FSG6665 / 66 — No Item Name Available
ManufacturerMeggitt (new Hampshire), Inc
StatusCANCELLED
General Characteristics Item DescriptionC/O 2 CIRCUIT CARD ASSY AND 3 SPACERS,INCL ULTRAVIOLET LIGHT DETECTOR,APPROX O/A DIM. 3.250 IN. LG BY 4.188 IN. DIA IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5133-00-227-9646 INTERCHANGEABLE
Drill,twist
2590-00-973-0420044004-4 INTERCHANGEABLE
Cap,filler Opening
Center - Moeller Products Llc
1630-01-035-63119542095-1 INTERCHANGEABLE
Rotor Assembly,disc Brake
Meggitt Aircraft Braking Systems Corporation
5961-01-080-1220352-1090-240 INTERCHANGEABLE
Semiconductor Device Set
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6640-01-473-076044004 INTERCHANGEABLE
Pipet,fuel Tester
Petrolab, L.l.c.
Cross-Reference Index
Part NumberManufacturer
44004 PRIMARY Meggitt (new Hampshire), Inc (USA)
Related Parts
5133-00-227-9646INTERCHANGEABLE
DRILL,TWIST
2590-00-973-0420INTERCHANGEABLE
CAP,FILLER OPENING
044004-4
1630-01-035-6311INTERCHANGEABLE
ROTOR ASSEMBLY,DISC BRAKE
9542095-1
5961-01-080-1220INTERCHANGEABLE
SEMICONDUCTOR DEVICE SET
352-1090-240
6640-01-473-0760INTERCHANGEABLE
PIPET,FUEL TESTER
44004

Frequently Asked Questions

What is NSN 6665-01-039-5751?

NSN 6665-01-039-5751 is a Flame Detector Subassembly, manufactured by Meggitt (new Hampshire), Inc, classified under FSC 6665 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6665-01-039-5751?

NSN 6665-01-039-5751 has 1 cross-referenced part number: 44004 (Meggitt (new Hampshire), Inc).

What NSN replaces 6665-01-039-5751?

There are 5 known substitutes for 6665-01-039-5751: 5133-00-227-9646, 2590-00-973-0420, 1630-01-035-6311 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 44004?

Key specifications for 44004: General Characteristics Item Description: C/O 2 CIRCUIT CARD ASSY AND 3 SPACERS,INCL ULTRAVIOLET LIGHT DETECTOR,APPROX O/A DIM. 3.250 IN. LG BY 4.188 IN. DIA IN. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6665-01-039-5751 still in active supply?

NSN 6665-01-039-5751 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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