The Valve Assembly,environmental Con, cataloged under National Stock Number 1660-00-008-4053, 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 Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-00-008-4053 |
| Primary Part Number | AV1121 |
| Item Name | Valve Assembly,environmental Con |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S |
| Status | ACTIVE |
| FSC Application Data | HEAT AND VENT SYSTEM,AIR CONDITIONING,ACFT |
| General Characteristics Item Description | OPERATING TEMP MINUS 65.0 TO PLUS 210.0,SCOOP FLOW AREA 1.500SQUARE IN. IN OPEN POSITION,VOLTAGE 115 AC,FREQUENCY 400 HZ,PRESSUREDROP 3.5 PM AIR AT A PRESSURE DROP OF 5 IN. OF WATER AT SEA LEVEL,6.000 IN. H,4.250 IN. W,6.680 IN. MIN 6.720 IN. MAX LG,ROTATION 90.0CLOCK WISE IN |
| 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 |
|---|---|
| AV1121 PRIMARY | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA) |
NSN 1660-00-008-4053 is a Valve Assembly,environmental Con, manufactured by Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-008-4053 has 1 manufacturer part number on file: AV1121 (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S).
Key specifications for AV1121: FSC Application Data: HEAT AND VENT SYSTEM,AIR CONDITIONING,ACFT; General Characteristics Item Description: OPERATING TEMP MINUS 65.0 TO PLUS 210.0,SCOOP FLOW AREA 1.500SQUARE IN. IN OPEN POSITION,VOLTAGE 115 AC,FREQUENCY 400 HZ,PRESSUREDROP 3.5 PM AIR AT A PRESSURE DROP OF 5 IN. OF WATER AT SEA LEVEL,6.000 IN. H,4.250 IN. W,6.680 IN. MIN 6.720 IN. MAX LG,ROTATION 90.0CLOCK WISE IN; Part Name Assigned by Controlling Agency: VALVE,CABIN RAM-AIR. 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 1660-00-008-4053 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.