Diffuser, Air, Aircraft Heating an1660-01-672-7274

NSN 1660-01-672-7274 · NIIN 016727274

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

Government record, cited

Also searched as 1660-01-672-7274 · 1660016727274 · NIIN 016727274 · 01-672-7274 · FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment

Nearby stock numbers ← 1660-01-672-7138 Duct Assembly, Air Conditioning-H · 1660-01-672-7308 Duct Assembly, Air Conditioning-H →

Features

Diffuser,air,aircraft Heating an — FSC 1660
General Characteristics Item Description: TEN HOLES AT MIN 0.274 TO MAX 0.277 AND 34 HOLES AT MIN 0.158 TO MAX 0.162

Identification

NSN: 1660-01-672-7274
NIIN: 016727274
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories

General Description

The Diffuser,air,aircraft Heating an, cataloged under National Stock Number 1660-01-672-7274, 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 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	1660-01-672-7274
Item Name	Diffuser,air,aircraft Heating an
FSC / FSG	1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Status	ACTIVE
General Characteristics Item Description	TEN HOLES AT MIN 0.274 TO MAX 0.277 AND 34 HOLES AT MIN 0.158 TO MAX 0.162

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
2FTH60027-0004	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 1660-01-672-7274?

NSN 1660-01-672-7274 is a Diffuser,air,aircraft Heating an, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.

What are the specifications of 1660-01-672-7274?

Key specifications for 1660-01-672-7274: Overall Height: 2.750 INCHES NOMINAL IN; General Characteristics Item Description: TEN HOLES AT MIN 0.274 TO MAX 0.277 AND 34 HOLES AT MIN 0.158 TO MAX 0.162; Overall Width: 3.880 INCHES NOMINAL IN; Special Features: DURABILITY CRITICAL. 1 specification is documented in the U.S. Government catalog.

Is NSN 1660-01-672-7274 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 1660-01-672-7274?

NSN 1660-01-672-7274 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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