The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-040-8529, 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 Aeromax Industries, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-040-8529 |
| Primary Part Number | 18-54030-1 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Aeromax Industries, Inc. |
| Status | ACTIVE |
| Aircraft Mission Design Series | F-5F |
| 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 |
|---|---|
| 18-54030-1 | Aeromax Industries, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 18-54030-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 18-54030-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
NSN 1660-01-040-8529 is a Duct Assembly,air Conditioning-H, manufactured by Aeromax Industries, Inc., classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-040-8529 has 1 manufacturer part number on file: 18-54030-1 (Aeromax Industries, Inc.).
Key specifications for 18-54030-1: Special Features: CONSISTS OF P/N 18-54030-3,WELD ASSEMBLY; P/N 18-54030-5,DUCT; P/N 18-54030-7,DUCT; P/N 18-54030-9,DUCT; P/N 18-54030-11,DUCT; P/N 18-54030-13,ARMAFLEX; P/N 18-54030-15,ARMAFLEX; P/N 18-54031-1,FLANGE; P/N 18-00508-173,MARKING; P/N 21L100-121,LABEL; End Item Identification: F-5F AIRCRAFT; Aircraft Mission Design Series: F-5F. 1 specification is 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 1660-01-040-8529 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.