PartsTable TECHNICAL DATA SHEET

NSN 1660-01-007-7399Government record, cited

Diffuser, Air, Aircraft Heating an1660-01-007-7399

NSN 1660-01-007-7399 · NIIN 010077399 · Part number 65500-00016-126

Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 78286

Government record, cited

NSN 1660-01-007-7399 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-007-7399. Manufacturer of record part number: 65500-00016-126.

Also searched as 1660-01-007-7399 · 1660010077399 · NIIN 010077399 · 01-007-7399 · FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 78286 · 65500-00016-126

Nearby stock numbers ← 1660-01-007-5455 Heat Exchanger, Air to Air, Aircra · 1660-01-007-7512 Clamp Assy →

Features

Diffuser,air,aircraft Heating an — FSC 1660
General Characteristics Item Description: ALUMINUM ALLOY; 31.940 IN. NOMINAL OVERALL LENGTH; 15.000 IN. NOMINAL OVERALL WIDTH; 2.880 IN. NOMINAL OVERALL HEIGHT IN
4 manufacturer part numbers on file
Manufacturer of record: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

Identification

NSN: 1660-01-007-7399
NIIN: 010077399
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 65500-00016-126
Manufacturer: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

General Description

The Diffuser,air,aircraft Heating an, cataloged under National Stock Number 1660-01-007-7399, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	1660-01-007-7399
Primary Part Number	65500-00016-126
Item Name	Diffuser,air,aircraft Heating an
FSC / FSG	1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Manufacturer	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Status	ACTIVE
General Characteristics Item Description	ALUMINUM ALLOY; 31.940 IN. NOMINAL OVERALL LENGTH; 15.000 IN. NOMINAL OVERALL WIDTH; 2.880 IN. NOMINAL OVERALL HEIGHT IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL B — Remove Demilitarization Key Points
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
65500-00016-126	Rotair Aerospace Corp (USA)
65500-00016-126	Airbus Deutschland Gmbh -Werk Bremen- (DEU)
65500-00016-126	Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc (USA)
65500-00016-126 PRIMARY	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)

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 1660-01-007-7399?

NSN 1660-01-007-7399 is a Diffuser,air,aircraft Heating an, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.

What part numbers are listed for NSN 1660-01-007-7399?

NSN 1660-01-007-7399 has 4 manufacturer part numbers on file: 65500-00016-126 (Rotair Aerospace Corp), 65500-00016-126 (Airbus Deutschland Gmbh -Werk Bremen-), 65500-00016-126 (Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc), 65500-00016-126 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

What are the specifications of 65500-00016-126?

Key specifications for 65500-00016-126: General Characteristics Item Description: ALUMINUM ALLOY; 31.940 IN. NOMINAL OVERALL LENGTH; 15.000 IN. NOMINAL OVERALL WIDTH; 2.880 IN. NOMINAL OVERALL HEIGHT IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 1660-01-007-7399 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 1660-01-007-7399?

NSN 1660-01-007-7399 has DEMIL Code B. 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.

PartsTable Design LLC · partstable.com