The Seat,metering Valve,regulator, cataloged under National Stock Number 1660-01-044-1707, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-044-1707 |
| Primary Part Number | 139129-1 |
| Item Name | Seat,metering Valve,regulator |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International, Inc Div Aerospace-Tucson |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY QQ-A-267 2024-T4,ALTERNATE MATL ALUMINUM ALLOY QQ-A-268 2024-T4,ANODIZE PER SPEC MIL-A-8625 TYPE II,O/A FINISH 125.0 MICROINCHES,0.690 IN. MAX 0.670 IN. MIN LG,0.630 IN. MAX 0.620 IN. MIN HEX STOCK,3 HOLES FOR SAFETY WIRE,ONE END THREAD 0.375-24 UNF-3A PER SPEC MIL-S-7742 A |
| 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 |
|---|---|
| 139129-1 PRIMARY | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| Reference | Meaning |
|---|---|
| 139129-1 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
NSN 1660-01-044-1707 is a Seat,metering Valve,regulator, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-044-1707 has 1 manufacturer part number on file: 139129-1 (Honeywell International, Inc Div Aerospace-Tucson).
Key specifications for 139129-1: General Characteristics Item Description: ALUMINUM ALLOY QQ-A-267 2024-T4,ALTERNATE MATL ALUMINUM ALLOY QQ-A-268 2024-T4,ANODIZE PER SPEC MIL-A-8625 TYPE II,O/A FINISH 125.0 MICROINCHES,0.690 IN. MAX 0.670 IN. MIN LG,0.630 IN. MAX 0.620 IN. MIN HEX STOCK,3 HOLES FOR SAFETY WIRE,ONE END THREAD 0.375-24 UNF-3A PER SPEC MIL-S-7742 A; End Item Identification: ACFT E3A P/O 1660010061601. 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 1660-01-044-1707 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.