Duct Assembly, Air Conditioning-H1660-01-066-3199

NSN 1660-01-066-3199 · NIIN 010663199

FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories

Government record, cited

Also searched as 1660-01-066-3199 · 1660010663199 · NIIN 010663199 · 01-066-3199 · FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · 16Y227-31 · 16Y227-43 · 16Y227-5

Nearby stock numbers ← 1660-01-066-3198 Duct Assembly, Air Conditioning-H · 1660-01-066-3200 Duct Assembly, Air Conditioning-H →

Features

Duct Assembly,air Conditioning-H — FSC 1660

Identification

NSN: 1660-01-066-3199
NIIN: 010663199
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories

General Description

The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-066-3199, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	1660-01-066-3199
Item Name	Duct Assembly,air Conditioning-H
FSC / FSG	1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL Q — CCL Item — Commerce Control List
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
16Y227-31	5/9 Secondary reference U.S. Government activity
16Y227-43	5/9 Secondary reference U.S. Government activity
16Y227-5	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

1660-00-001-1693

DUCT ASSEMBLY,AIR CONDITIONING-H

1660-00-001-1754

BAFFLE,AIR

1660-00-001-2491

CAGE,BYPASS VALVE

1660-00-001-2493

1660-00-001-2493 · Item name not on file

1660-00-001-2496

CONTROL BOX,ELECTRICAL-ELECTRONI

1660-00-001-2497

1660-00-001-2497 · Item name not on file

1660-00-001-4130

1660-00-001-4130 · Item name not on file

1660-00-001-4479

CONTROLLER,AIR PRESSURE,AIRCRAFT

Frequently Asked Questions

What is NSN 1660-01-066-3199?

NSN 1660-01-066-3199 is a Duct Assembly,air Conditioning-H, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.

What are the specifications of 1660-01-066-3199?

Key specifications for 1660-01-066-3199: Special Features: DUCT,OUTLET-COOLING TURBINE;C/O-SHEET,COATING,COUPLING,-11 CEMENT FMS-1015 TYPE 3,-43 DUCT ASSY,-9 FLANGE .100 X 5 X 5,-21 TUBE 3/4 O.D. X .035 X 2,-35 1 O.D. X .035 X 2,-39 2 1/2 O.D. X .035 X 7,-41 TRANSITION- 2 1/2 O.D. X .035 X 2;MATERIAL--9 ALUM AL 6061 PER QQ-A-250/11-T6 FINISH A104,-21 -35 6061 ALUM ALLOY TUBING PER MIL-T-7081-T4 FINISH A104,-39 -41 6061 ALUM ALLOY TUBING PER FMS-3013-T4;NHA 16Y020-5;EFF ON-0005 0005,0007-ON; End Item Identification: F-16A/B USAF AIRCRAFT A. 0 specifications are documented in the U.S. Government catalog.

Is NSN 1660-01-066-3199 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

What is the DEMIL code for NSN 1660-01-066-3199?

NSN 1660-01-066-3199 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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