FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories
Government record, cited
Also searched as1660-01-345-3337 ·
1660013453337 ·
NIIN 013453337 ·
01-345-3337 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Nearby stock numbers← 1660-01-345-3332 Grille, Metal
·
1660-01-345-3338 Diffuser, Air, Aircraft Heating an →
Features
Diffuser,air,aircraft Heating an — FSC 1660
FSC Application Data: ACFT HEATING AND COOLING SYSTEM
General Characteristics Item Description: LEFT HAND TROOP COMPARTMENT; 18.08 IN. WIDE IN
Identification
NSN: 1660-01-345-3337
NIIN: 013453337
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 1660-01-345-3337, 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2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
1660-01-345-3337
Item Name
Diffuser,air,aircraft Heating an
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Status
ACTIVE
FSC Application Data
ACFT HEATING AND COOLING SYSTEM
General Characteristics Item Description
LEFT HAND TROOP COMPARTMENT; 18.08 IN. WIDE IN
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
4A11160-101A
3/2Design 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 1660-01-345-3337?
NSN 1660-01-345-3337 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 1660-01-345-3337?
Key specifications for 1660-01-345-3337: FSC Application Data: ACFT HEATING AND COOLING SYSTEM; General Characteristics Item Description: LEFT HAND TROOP COMPARTMENT; 18.08 IN. WIDE IN; End Item Identification: C5-B AIRCRAFT. 2 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-345-3337 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.