The Controller,air Pressure,aircraft, cataloged under National Stock Number 1660-01-444-9003, 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 Div Aerospace-Tucson. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-444-9003 |
| Primary Part Number | 2118734-3-1 |
| Item Name | Controller,air Pressure,aircraft |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International, Inc Div Aerospace-Tucson |
| Status | ACTIVE |
| FSC Application Data | ACFT PRESSURIZATION SYSTEM |
| General Characteristics Item Description | MAX ALTITUDE 50,000 FT.; LIFE CYCLE NOT LESS THEN 30 YEARS FT |
| 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 |
|---|---|
| 2118734-3-1 PRIMARY | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| Reference | Meaning |
|---|---|
| DCU-282 | 5/1 Secondary reference Aeronautical and Support Equipment Type/asetds/aflcmc/ezsc |
NSN 1660-01-444-9003 is a Controller,air Pressure,aircraft, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-444-9003 has 1 manufacturer part number on file: 2118734-3-1 (Honeywell International, Inc Div Aerospace-Tucson).
2 possible matches (shared part number, not a government interchangeability claim): 1660-01-479-7802, 1660-01-499-6503. Verify interchangeability with system specifications before substitution.
Key specifications for 2118734-3-1: Overall Height: 7.620 INCHES MAXIMUM IN; FSC Application Data: ACFT PRESSURIZATION SYSTEM; General Characteristics Item Description: MAX ALTITUDE 50,000 FT.; LIFE CYCLE NOT LESS THEN 30 YEARS FT; Overall Length: 12.620 INCHES MAXIMUM 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 1660-01-444-9003 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.