The Draft Control,flue,automatic, cataloged under National Stock Number 4520-01-630-2055, 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 L. R. Gorrell Company. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-630-2055 |
| Primary Part Number | 1770 |
| Item Name | Draft Control,flue,automatic |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | L. R. Gorrell Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1770 PRIMARY | L. R. Gorrell Company (USA) |
NSN 4520-01-630-2055 is a Draft Control,flue,automatic, manufactured by L. R. Gorrell Company, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-630-2055 has 1 manufacturer part number on file: 1770 (L. R. Gorrell Company).
Key specifications for 1770: Overall Height: 12.0 INCHES NOMINAL IN; Overall Length: 12.0 INCHES NOMINAL IN; Special Features: OVERSEAS MRC 304.8MM X 304.8MM MM; Part Name Assigned by Controlling Agency: DAMPER, VOLUME CONTROL 12X12. 0 specifications are 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.