The Diffuser,air,aircraft Heating an, cataloged under National Stock Number 1660-00-773-7707, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-00-773-7707 |
| Item Name | Diffuser,air,aircraft Heating an |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | C/O VENT 1.750 IN. MIN 2.750 IN. MAX W,10.000 IN. MIN 11.125 IN. MAX L; 1 SCREW SHAFT CONTROL ASSY; 4 PHENOLIC WASHERS; 5 CSK MTG HOLES 0.141 IN. MIN 0.279 IN. MAX; 1 GASKET,POLYURETHANE; 4 LEVER ARMS; 1 DAMPER CHANNEL 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 |
| Reference | Meaning |
|---|---|
| 6101-3-90161 | 3/9 Design control — primary reference Mestek Inc. Dba Anemostat, a Mestek Company |
NSN 1660-00-773-7707 is a Diffuser,air,aircraft Heating an, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-00-773-7707: General Characteristics Item Description: C/O VENT 1.750 IN. MIN 2.750 IN. MAX W,10.000 IN. MIN 11.125 IN. MAX L; 1 SCREW SHAFT CONTROL ASSY; 4 PHENOLIC WASHERS; 5 CSK MTG HOLES 0.141 IN. MIN 0.279 IN. MAX; 1 GASKET,POLYURETHANE; 4 LEVER ARMS; 1 DAMPER CHANNEL IN. 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 1660-00-773-7707 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.