The Valve Assembly,environmental Con, cataloged under National Stock Number 1660-01-004-3145, 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). 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 1660-01-004-3145 |
| Primary Part Number | 104908 |
| 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 |
| FSC Application Data | ACFT AIRCONDITIONING SYS |
| General Characteristics Item Description | 7.86 IN. MAX LG,6.656 IN. MAX W,12.39 IN. MAX H 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 |
|---|---|
| 104908 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 10-3058-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| 104908 | 5/9 Secondary reference U.S. Government activity |
NSN 1660-01-004-3145 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 1660-01-004-3145 has 1 manufacturer part number on file: 104908 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
4 possible matches (shared part number, not a government interchangeability claim): 5840-01-046-8356, 4820-01-192-7907, 6930-01-531-6990. Verify interchangeability with system specifications before substitution.
Key specifications for 104908: FSC Application Data: ACFT AIRCONDITIONING SYS; General Characteristics Item Description: 7.86 IN. MAX LG,6.656 IN. MAX W,12.39 IN. MAX H IN; End Item Identification: E3A AIRCRAFT. 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 1660-01-004-3145 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.