Duct Assembly, Air Conditioning-H1660-01-258-8597

NSN 1660-01-258-8597 · NIIN 012588597

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

Government record, cited

Also searched as 1660-01-258-8597 · 1660012588597 · NIIN 012588597 · 01-258-8597 · FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment

Nearby stock numbers ← 1660-01-258-8349 Heat Exchanger, Air to Air, Aircra · 1660-01-259-0368 Turbine Wheel →

Features

Duct Assembly,air Conditioning-H — FSC 1660
Material Document and Classification: AMS 5510 NATIONAL SPEC SINGLE MATERIAL RESPONSE
Material: STEEL COMP 321

Identification

NSN: 1660-01-258-8597
NIIN: 012588597
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 1660-01-258-8597, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	1660-01-258-8597
Item Name	Duct Assembly,air Conditioning-H
FSC / FSG	1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Status	ACTIVE
Material Document and Classification	AMS 5510 NATIONAL SPEC SINGLE MATERIAL RESPONSE
Material	STEEL COMP 321

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL D — Destroy Item
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
209-064-214-101	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 1660-01-258-8597?

NSN 1660-01-258-8597 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 1660-01-258-8597?

Key specifications for 1660-01-258-8597: Material Document and Classification: AMS 5510 NATIONAL SPEC SINGLE MATERIAL RESPONSE; Overall Length: 26.400 INCHES NOMINAL IN; Special Features: INCLUDES FLEXIBLE BELLOWS AND MOUNTING FLANGE; Material: STEEL COMP 321. 2 specifications are documented in the U.S. Government catalog.

Is NSN 1660-01-258-8597 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 1660-01-258-8597?

NSN 1660-01-258-8597 has DEMIL Code D. 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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