PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

202990SR4Turbine,aircraft Cooling

Honeywell International Inc. Div Aerospace - Torrance · NSN 1660-00-796-4741 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-796-4741 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-796-4741. Primary manufacturer part number: 202990SR4.
Features
  • Turbine,aircraft Cooling — FSC 1660
  • 4 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,aircraft Cooling, cataloged under National Stock Number 1660-00-796-4741, 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. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameTurbine,aircraft Cooling
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersHoneywell International Inc. Div Aerospace - Torrance (CAGE 70210); Alliedsignal Inc Dba Allied-Signal Aerospace Co (CAGE 72599)
Technical Specifications
ParameterValue
NSN1660-00-796-4741
Primary Part Number202990SR4
Item NameTurbine,aircraft Cooling
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerHoneywell International Inc. Div Aerospace - Torrance
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5340-00-215-7358202990 INTERCHANGEABLE
Clip,retaining
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
6220-01-014-8184202990 INTERCHANGEABLE
Bracket,light
Symbolic Displays, Inc
5340-01-561-4067 INTERCHANGEABLE
Cap,protective,dust and Moisture
Cross-Reference Index
Part NumberManufacturer
202990SR4 PRIMARY Honeywell International Inc. Div Aerospace - Torrance (USA)
202990SR4 Alliedsignal Inc Dba Allied-Signal Aerospace Co (USA)
202990 Alliedsignal Inc Dba Allied-Signal Aerospace Co (USA)
202990 PRIMARY Honeywell International Inc. Div Aerospace - Torrance (USA)
Related Parts
5340-00-215-7358INTERCHANGEABLE
CLIP,RETAINING
202990
6220-01-014-8184INTERCHANGEABLE
BRACKET,LIGHT
202990
5340-01-561-4067INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE

Frequently Asked Questions

What is NSN 1660-00-796-4741?

NSN 1660-00-796-4741 is a Turbine,aircraft Cooling, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 1660 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 1660-00-796-4741?

NSN 1660-00-796-4741 has 4 cross-referenced part numbers: 202990SR4 (Honeywell International Inc. Div Aerospace - Torrance), 202990SR4 (Alliedsignal Inc Dba Allied-Signal Aerospace Co), 202990 (Alliedsignal Inc Dba Allied-Signal Aerospace Co), 202990 (Honeywell International Inc. Div Aerospace - Torrance).

What NSN replaces 1660-00-796-4741?

There are 3 known substitutes for 1660-00-796-4741: 5340-00-215-7358, 6220-01-014-8184, 5340-01-561-4067. Verify interchangeability with system specifications before substitution.

Is NSN 1660-00-796-4741 still in active supply?

NSN 1660-00-796-4741 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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