FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories
Government record, cited
Also searched as1660-00-520-2966 ·
1660005202966 ·
NIIN 005202966 ·
00-520-2966 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
General Description
The Impeller, cataloged under National Stock Number 1660-00-520-2966, 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Equipment) of the Aircraft Components and Accessories group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Impeller
FSC / FSG
1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16)
Technical Specifications
Parameter
Value
NSN
1660-00-520-2966
Item Name
Impeller
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL B — Remove Demilitarization Key Points
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-132-7695AA1646-3KPOSSIBLE MATCH
TEE,TUBE TO BOSS
Possible match (shared part number)Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply
5305-01-159-6563POSSIBLE MATCH
SCREW,ASSEMBLED WASHER
Possible match (shared part number)
3020-01-315-7711POSSIBLE MATCH
GEAR,HELICAL
Possible match (shared part number)
5950-01-369-839534933POSSIBLE MATCH
COIL,RADIO FREQUENCY
Possible match (shared part number)Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
7025-01-594-579534933POSSIBLE MATCH
DISK DRIVE UNIT
Possible match (shared part number)Iomega Corporation
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
349-33
3/2Design control — primary reference
U.S. Government activity
Related Parts
4730-01-132-7695POSSIBLE MATCH
TEE,TUBE TO BOSS
AA1646-3K
5305-01-159-6563POSSIBLE MATCH
SCREW,ASSEMBLED WASHER
3020-01-315-7711POSSIBLE MATCH
GEAR,HELICAL
5950-01-369-8395POSSIBLE MATCH
COIL,RADIO FREQUENCY
34933
7025-01-594-5795POSSIBLE MATCH
DISK DRIVE UNIT
34933
Frequently Asked Questions
What is NSN 1660-00-520-2966?
NSN 1660-00-520-2966 is a Impeller, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What NSN replaces 1660-00-520-2966?
5 possible matches (shared part number, not a government interchangeability claim): 4730-01-132-7695, 5305-01-159-6563, 3020-01-315-7711. Verify interchangeability with system specifications before substitution.
Is NSN 1660-00-520-2966 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 1660-00-520-2966?
NSN 1660-00-520-2966 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.