15866-51 - Honeywell Air Cycle Machine Cooling Turbine for Commercial Aircraft

15866-51 is an aircraft cooling turbine — the rotating core of an air cycle machine (ACM) — manufactured by Honeywell (legacy AlliedSignal / Garrett air-management heritage, CAGE 72599) and cataloged by the DLA under National Stock Number 1660-00-449-1317 within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating and Pressurizing Equipment), item name "TURBINE, AIRCRAFT COOLING." The ACM cooling turbine expands bleed air to drop its temperature in the environmental control system (ECS) air-conditioning pack.

The specific aircraft type and effectivity are not identified in the DLA record and must be confirmed against the applicable aircraft IPC. As a high-speed ECS rotable it is sourced overhauled or serviceable with FAA 8130-3 / EASA Form 1, a bench/balance record, and full traceability. Its function falls under ATA Chapter 21 (Air Conditioning).

Part Number
15866-51
Manufacturer
Honeywell
Aircraft Model
Commercial Aircraft
Category
Environmental Control Systems
Condition
Overhauled
Certification
FAA 8130-3
Price
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Availability
Contact for Availability

Key Specifications for 15866-51

ATA Chapter
21 — Air Conditioning
Part Type
Air Cycle Machine Cooling Turbine
Manufacturer / CAGE
Honeywell (AlliedSignal/Garrett) / 72599
NSN
1660-00-449-1317
FLIS Item Name
TURBINE, AIRCRAFT COOLING (FSC 1660)
Typical Condition
Overhauled / Serviceable (rotable)

Procurement Notes for 15866-51

Identity (Honeywell ACM cooling turbine, NSN 1660-00-449-1317) is FLIS-confirmed; the exact aircraft and effectivity must be verified against the aircraft IPC. Source overhauled/serviceable with FAA 8130-3 and a bench/balance record.

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Frequently Asked Questions about 15866-51

What aircraft does 15866-51 fit?
15866-51 is a environmental control systems associated with the Commercial Aircraft, manufactured by Honeywell. Eligibility depends on the aircraft serial number, modification status, and configuration; verify 15866-51 against the aircraft IPC and maintenance documentation before procurement.
Can 15866-51 be supplied new, overhauled, or serviceable?
Subject to global supplier availability, 15866-51 can typically be sourced new, overhauled, serviceable, or as-removed for the Commercial Aircraft, each with the airworthiness documentation appropriate to that condition.
What traceability and certification ships with 15866-51?
15866-51 can be supplied with FAA 8130-3 where available; EASA Form 1 dual release and back-to-birth or teardown traceability may also be available depending on the source and condition of the specific unit.
How quickly can Honeywell 15866-51 be quoted for an AOG?
RFQs for 15866-51 on the Commercial Aircraft are typically answered within 12-24 hours. AOG requirements are prioritized and sourced through the global supplier network on an expedited basis.
Can 15866-51 be exported internationally?
Yes. 15866-51 can be shipped worldwide subject to ITAR/EAR screening and destination-country import compliance; export and customs documentation is coordinated per shipment.

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