The Retainer,spring, cataloged under National Stock Number 1660-01-066-5643, 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 Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-066-5643 |
| Primary Part Number | 3166673-1 |
| Item Name | Retainer,spring |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| FSC Application Data | SENSOR,TEMPERATURE CONTROLLER,AIR CONDITIONING AND HEATING SYSTEM AIRCRAFT |
| General Characteristics Item Description | CRES,0.710 IN MAX 0.700 IN MIN DIA,0.130 IN MAX 0.120 IN MIN THK IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3166673-1 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 3166673-1 | 5/9 Secondary reference U.S. Government activity |
NSN 1660-01-066-5643 is a Retainer,spring, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-066-5643 has 1 manufacturer part number on file: 3166673-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 3166673-1: FSC Application Data: SENSOR,TEMPERATURE CONTROLLER,AIR CONDITIONING AND HEATING SYSTEM AIRCRAFT; General Characteristics Item Description: CRES,0.710 IN MAX 0.700 IN MIN DIA,0.130 IN MAX 0.120 IN MIN THK IN; End Item Identification: F16 AIRCRAFT. 2 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.