PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

202639Turbine Wheel Assembly,aircraft

Honeywell International Inc. Div Aerospace - Torrance · NSN 1660-00-774-5472 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-774-5472 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-774-5472. Primary manufacturer part number: 202639.
Features
  • Turbine Wheel Assembly,aircraft — FSC 1660
  • General Characteristics Item Description: 3.418 IN. DIA,1.045 IN. LG;13 BLADES EQUALLY SPACED;0.393 IN. DIA BORE THROUGH HUB IN
  • 2 verified cross-references
  • Primary manufacturer: Honeywell International Inc. Div Aerospace - Torrance
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Turbine Wheel Assembly,aircraft, cataloged under National Stock Number 1660-00-774-5472, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-00-774-5472
Primary Part Number202639
Item NameTurbine Wheel Assembly,aircraft
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerHoneywell International Inc. Div Aerospace - Torrance
StatusACTIVE
General Characteristics Item Description3.418 IN. DIA,1.045 IN. LG;13 BLADES EQUALLY SPACED;0.393 IN. DIA BORE THROUGH HUB IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5340-00-514-272616T1540 INTERCHANGEABLE
Clamp,loop
Chief of Engineers Dept of Army
4330-01-075-8257011200 INTERCHANGEABLE
Filter Element,fluid
Sullair Corp
Cross-Reference Index
Part NumberManufacturer
202639 Alliedsignal Inc Dba Allied-Signal Aerospace Co (USA)
202639 PRIMARY Honeywell International Inc. Div Aerospace - Torrance (USA)
Related Parts
5340-00-514-2726INTERCHANGEABLE
CLAMP,LOOP
16T1540
4330-01-075-8257INTERCHANGEABLE
FILTER ELEMENT,FLUID
011200

Frequently Asked Questions

What is NSN 1660-00-774-5472?

NSN 1660-00-774-5472 is a Turbine Wheel Assembly,aircraft, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-00-774-5472?

NSN 1660-00-774-5472 has 2 cross-referenced part numbers: 202639 (Alliedsignal Inc Dba Allied-Signal Aerospace Co), 202639 (Honeywell International Inc. Div Aerospace - Torrance).

What NSN replaces 1660-00-774-5472?

There are 2 known substitutes for 1660-00-774-5472: 5340-00-514-2726, 4330-01-075-8257. Verify interchangeability with system specifications before substitution.

What are the specifications of 202639?

Key specifications for 202639: General Characteristics Item Description: 3.418 IN. DIA,1.045 IN. LG;13 BLADES EQUALLY SPACED;0.393 IN. DIA BORE THROUGH HUB IN. 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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