The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-00-252-6955, 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 Aerospace Lighting Corporation. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1660-00-252-6955 |
| Primary Part Number | 2306 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Aerospace Lighting Corporation |
| Status | ACTIVE |
| Surface Treatment Document and Classification | 595 FED STD SINGLE TREATMENT RESPONSE |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 2024 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 2306 PRIMARY | Aerospace Lighting Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2306 | 5/9 Secondary reference U.S. Government activity |
NSN 1660-00-252-6955 is a Duct Assembly,air Conditioning-H, manufactured by Aerospace Lighting Corporation, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-252-6955 has 1 manufacturer part number on file: 2306 (Aerospace Lighting Corporation).
Key specifications for 2306: Surface Treatment Document and Classification: 595 FED STD SINGLE TREATMENT RESPONSE; Overall Width: 2.500 INCHES NOMINAL IN; Special Features: 2 MOUNTING HOLES 0.198 IN. MIN AND 0.204 IN. MAX DIA; SMALL END 1.000 IN. DIA AND LARGE END 1.250 IN. DIA IN; Surface Treatment: ANODIZE. 3 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 1660-00-252-6955 has DEMIL Code Q. 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.