The Valve Assembly,environmental Con, cataloged under National Stock Number 1660-01-573-9667, 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. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1660-01-573-9667 |
| Primary Part Number | 3291214-2 |
| Item Name | Valve Assembly,environmental Con |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| 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 |
|---|---|
| 3291214-2 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 4820PL1790991 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 1660-01-573-9667 is a Valve Assembly,environmental Con, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-573-9667 has 1 manufacturer part number on file: 3291214-2 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 3291214-2: Special Features: COMPONENT MAINTENANCE MANUAL 3291214; VALVE NORMAL POSITION, SPRING-LOADED CLOSED; INLET AIR PRESSURE, 62 PSIG AT 290 DEGREES F MAX; INLET AIR TMEPERATURE, 490 DEGREES F (254 DEGREES C) AT 30 PSIG (207 KPA) MAX; AMBIENT OPERATING TEMPERATURE, -65 TO 130 DEGREES F (-53 TO 54 DEGREES C); DIMENSION, LENGTH OF 8.8 INCHES MAX; WIDTH, 6.67 INCHES MAX; HEIGHT, 10.0 INCHES MAX; WEIGHT, 4.29 POUNDS MAX LBS; Part Name Assigned by Controlling Agency: THREE AND ONE HALF-INCH DIAMETER APU BLEED AIR VALVE; PART NUMBER 3291214-2. 0 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 1660-01-573-9667 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.