Duct Assembly, Pressure Box1660-01-191-6883

NSN 1660-01-191-6883 · NIIN 011916883

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

Government record, cited

Also searched as 1660-01-191-6883 · 1660011916883 · NIIN 011916883 · 01-191-6883 · FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment

Nearby stock numbers ← 1660-01-191-6882 Cover, Separator · 1660-01-191-6952 Diffuser, Air, Aircraft Heating an →

Features

Duct Assembly,pressure Box — FSC 1660
General Characteristics Item Description: CRES AISI 321 OR AISI 347 PER BMS 7-41;C/O 2 DUCTS 1.500 IN. OD 0.020 IN. WALL,2 FLANGES;O/A DIMS 10.030 IN. LG;FIRST END BEADED,LARGEST FLANGE 6.270 IN. FROM END,SECOND END INCLUDES SMALLER FLANGE IN

Identification

NSN: 1660-01-191-6883
NIIN: 011916883
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories

General Description

The Duct Assembly,pressure Box, cataloged under National Stock Number 1660-01-191-6883, 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	1660-01-191-6883
Item Name	Duct Assembly,pressure Box
FSC / FSG	1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Status	ACTIVE
General Characteristics Item Description	CRES AISI 321 OR AISI 347 PER BMS 7-41;C/O 2 DUCTS 1.500 IN. OD 0.020 IN. WALL,2 FLANGES;O/A DIMS 10.030 IN. LG;FIRST END BEADED,LARGEST FLANGE 6.270 IN. FROM END,SECOND END INCLUDES SMALLER FLANGE IN

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
204-30844-1	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 1660-01-191-6883?

NSN 1660-01-191-6883 is a Duct Assembly,pressure Box, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.

What are the specifications of 1660-01-191-6883?

Key specifications for 1660-01-191-6883: General Characteristics Item Description: CRES AISI 321 OR AISI 347 PER BMS 7-41;C/O 2 DUCTS 1.500 IN. OD 0.020 IN. WALL,2 FLANGES;O/A DIMS 10.030 IN. LG;FIRST END BEADED,LARGEST FLANGE 6.270 IN. FROM END,SECOND END INCLUDES SMALLER FLANGE IN; End Item Identification: E3A ACFT. 1 specification is documented in the U.S. Government catalog.

Is NSN 1660-01-191-6883 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 1660-01-191-6883?

NSN 1660-01-191-6883 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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