The Quadrant,damper Control, cataloged under National Stock Number 4520-01-665-0680, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is General Atomics Div General Atomics Electromagnetic Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Quadrant,damper Control |
| FSC / FSG | 4520 — Space and Water Heating Equipment (FSG 45) |
| Manufacturers | General Atomics Div General Atomics Electromagnetic Systems (CAGE 4XB60) |
| Parameter | Value |
|---|---|
| NSN | 4520-01-665-0680 |
| Primary Part Number | 3890AS000195-01 |
| Item Name | Quadrant,damper Control |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | General Atomics Div General Atomics Electromagnetic Systems |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 3890AS000195-01 PRIMARY | General Atomics Div General Atomics Electromagnetic Systems (USA) |
| Reference | Meaning |
|---|---|
| 3890AS000195-01 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4520-01-665-0680 is a Quadrant,damper Control, manufactured by General Atomics Div General Atomics Electromagnetic Systems, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-665-0680 has 1 manufacturer part number on file: 3890AS000195-01 (General Atomics Div General Atomics Electromagnetic Systems).
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 4520-01-665-0680 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.