PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40489-SVIndicator,carbon Monoxide

Hdt Expeditionary Systems Inc · NSN 6665-01-539-8270 · FSC 6665 · No Item Name Available
Verified by PartsTable
NSN 6665-01-539-8270 — this item is cataloged by the U.S. Government under National Stock Number 6665-01-539-8270. Primary manufacturer part number: 40489-SV.
Features
  • Indicator,carbon Monoxide — FSC 6665
  • 3 verified cross-references
  • Primary manufacturer: Hdt Expeditionary Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,carbon Monoxide, cataloged under National Stock Number 6665-01-539-8270, is classified within Federal Supply Class 6665 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hdt Expeditionary Systems Inc. This item has 3 commercial cross-references from 2 manufacturers, 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 NameIndicator,carbon Monoxide
FSC / FSG6665 — No Item Name Available (FSG 66)
ManufacturersWindward Enterprises, Llc (CAGE 0UKB6); Hdt Expeditionary Systems Inc (CAGE 92878)
Technical Specifications
ParameterValue
NSN6665-01-539-8270
Primary Part Number40489-SV
Item NameIndicator,carbon Monoxide
FSC / FSG6665 / 66 — No Item Name Available
ManufacturerHdt Expeditionary Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3120-00-179-691940489 INTERCHANGEABLE
Bearing Half,sleeve
Cummins Inc.
3110-00-198-295940489 INTERCHANGEABLE
Bearing,ball,airframe
Eaton Aerospace, Llc Dba Jackson South
9540-00-596-1125 INTERCHANGEABLE
Beam,structural
4930-01-109-957740489 INTERCHANGEABLE
Plate,cover
Mcneil Ohio Corp
5305-01-420-6703 INTERCHANGEABLE
Screw,cap,hexagon Head
Cross-Reference Index
Part NumberManufacturer
40489-SV Windward Enterprises, Llc (USA)
40489 Hdt Expeditionary Systems Inc (USA)
40489-SV PRIMARY Hdt Expeditionary Systems Inc (USA)
Related Parts
3120-00-179-6919INTERCHANGEABLE
BEARING HALF,SLEEVE
40489
3110-00-198-2959INTERCHANGEABLE
BEARING,BALL,AIRFRAME
40489
9540-00-596-1125INTERCHANGEABLE
BEAM,STRUCTURAL
4930-01-109-9577INTERCHANGEABLE
PLATE,COVER
40489
5305-01-420-6703INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD

Frequently Asked Questions

What is NSN 6665-01-539-8270?

NSN 6665-01-539-8270 is a Indicator,carbon Monoxide, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 6665 (No Item Name Available). Status: active.

What are the part numbers for NSN 6665-01-539-8270?

NSN 6665-01-539-8270 has 3 cross-referenced part numbers: 40489-SV (Windward Enterprises, Llc), 40489 (Hdt Expeditionary Systems Inc), 40489-SV (Hdt Expeditionary Systems Inc).

What NSN replaces 6665-01-539-8270?

There are 5 known substitutes for 6665-01-539-8270: 3120-00-179-6919, 3110-00-198-2959, 9540-00-596-1125 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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