Adapter, Air Inlet, Heat Exchanger1660-01-653-1938

NSN 1660-01-653-1938 · NIIN 016531938

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

Government record, cited

Also searched as 1660-01-653-1938 · 1660016531938 · NIIN 016531938 · 01-653-1938 · FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment

Nearby stock numbers ← 1660-01-653-1935 Adapter, Air Inlet, Heat Exchanger · 1660-01-653-1939 Diffuser, Air, Aircraft Heating an →

Features

Adapter,air Inlet,heat Exchanger — FSC 1660

Identification

NSN: 1660-01-653-1938
NIIN: 016531938
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories

General Description

The Adapter,air Inlet,heat Exchanger, cataloged under National Stock Number 1660-01-653-1938, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Adapter,air Inlet,heat Exchanger
FSC / FSG	1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16)

Technical Specifications

Parameter	Value
NSN	1660-01-653-1938
Item Name	Adapter,air Inlet,heat Exchanger
FSC / FSG	1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
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
213T4121-15	3/1 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.

1660-00-006-4472

FLANGE,VALVE BODY

1660-00-009-5646

ADAPTER ASSEMBLY,BELLOWS

1660-00-019-8389

1660-00-019-8389 · Item name not on file

1660-00-019-8399

1660-00-019-8399 · Item name not on file

1660-00-031-5285

1660-00-031-5285 · Item name not on file

1660-00-302-4390

PISTON,REGULATING V

1660-00-441-0575

PISTON

1660-01-601-0729

ETHERNET SWITCH

Frequently Asked Questions

What is NSN 1660-01-653-1938?

NSN 1660-01-653-1938 is a Adapter,air Inlet,heat Exchanger, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.

Is NSN 1660-01-653-1938 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.

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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