The Extractor,air Duct, cataloged under National Stock Number 4520-00-552-4366, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4520-00-552-4366 |
| Item Name | Extractor,air Duct |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,14 GAUGE,GANG OPERATED CURVED BLADES,ADJUSTABLE FROM FULL OPENTO FULL CLOSED POSITIONS TO AIR DIRECTION AND VOLUME CONTROL,NOISE FREE,WITH ADAPTER FOR REGULATOR CONTROL OPERATED FROM A KNOB LOCATED AT CEILING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AG45-14X4IN | 3/9 Design control — primary reference U.S. Government activity |
NSN 4520-00-552-4366 is a Extractor,air Duct, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-00-552-4366: General Characteristics Item Description: STEEL,14 GAUGE,GANG OPERATED CURVED BLADES,ADJUSTABLE FROM FULL OPENTO FULL CLOSED POSITIONS TO AIR DIRECTION AND VOLUME CONTROL,NOISE FREE,WITH ADAPTER FOR REGULATOR CONTROL OPERATED FROM A KNOB LOCATED AT CEILING. 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.
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.