The Sleeve,threaded,transducer, cataloged under National Stock Number 1660-00-084-8591, 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 Rtx Corporation Div Pratt & Whitney. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1660-00-084-8591 |
| Primary Part Number | 27227886 |
| Item Name | Sleeve,threaded,transducer |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| FSC Application Data | ACFT AIR TO AIR HEAT EXCHANGER INSTALLATION |
| General Characteristics Item Description | 0.688 IN. LG,EXTERNAL THREADED ONE END 0.470 IN. 5/16-32NEF-3ATHREAD,SMALLEST ID 0.093 IN.LARGEST ID THREADED 1/4-28NF-3B THREAD,MATERIAL PHOSPHOR BRONZE ROD FREE CUTTING PER QQ-B-750 COMP B IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 27227886 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 27227886 | 5/9 Secondary reference U.S. Government activity |
NSN 1660-00-084-8591 is a Sleeve,threaded,transducer, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-084-8591 has 1 manufacturer part number on file: 27227886 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 27227886: FSC Application Data: ACFT AIR TO AIR HEAT EXCHANGER INSTALLATION; General Characteristics Item Description: 0.688 IN. LG,EXTERNAL THREADED ONE END 0.470 IN. 5/16-32NEF-3ATHREAD,SMALLEST ID 0.093 IN.LARGEST ID THREADED 1/4-28NF-3B THREAD,MATERIAL PHOSPHOR BRONZE ROD FREE CUTTING PER QQ-B-750 COMP B IN. 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.
NSN 1660-00-084-8591 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.