The Diffuser,air,aircraft Heating an, cataloged under National Stock Number 1660-00-446-0926, 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 - Torrance. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 1660-00-446-0926 |
| Primary Part Number | 202932 |
| Item Name | Diffuser,air,aircraft Heating an |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| General Characteristics Item Description | 4.630 IN. MINIMUM AND 4.690 IN. MAXIMUM OVERALL LENGTH; 5.622 IN. MINIMUM AND 5.624 IN. MAXIMUM OVERALL DIAMETER; ALUMINUM ALLOY IN |
| 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 |
|---|---|
| 202932 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 202932 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 202932 | 5/2 Secondary reference U.S. Government activity |
NSN 1660-00-446-0926 is a Diffuser,air,aircraft Heating an, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-446-0926 has 1 manufacturer part number on file: 202932 (Honeywell International Inc. Div Aerospace - Torrance).
2 possible matches (shared part number, not a government interchangeability claim): 2030-01-331-1971, 6750-01-427-2134. Verify interchangeability with system specifications before substitution.
Key specifications for 202932: General Characteristics Item Description: 4.630 IN. MINIMUM AND 4.690 IN. MAXIMUM OVERALL LENGTH; 5.622 IN. MINIMUM AND 5.624 IN. MAXIMUM OVERALL DIAMETER; ALUMINUM ALLOY 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 1660-00-446-0926 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.