NSN 4520-01-684-2607 · NIIN 016842607 · Part number SEFSD-211 20IN DIA
Greenheck Fan Corporation Dba Greenheck Fan Corp · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 51704
Government record, cited
NSN 4520-01-684-2607 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-684-2607. Manufacturer of record part number: SEFSD-211 20IN DIA.
Also searched as4520-01-684-2607 ·
4520016842607 ·
NIIN 016842607 ·
01-684-2607 ·
FSC 4520 Space and Water Heating Equipment · CAGE 51704 · SEFSD-211 20IN DIA
Nearby stock numbers← 4520-01-684-1995 Heater, Immersion, Liquid Fuel Fir
·
4520-01-684-3648 Heater, Immersion, Liquid Fuel Fir →
Features
Damper,flue — FSC 4520
Mounting Method: SCREW
Shape: RECTANGULAR
Material: STEEL CORROSION RESISTING
1 manufacturer part number on file
Manufacturer of record: Greenheck Fan Corporation Dba Greenheck Fan Corp
Identification
NSN: 4520-01-684-2607
NIIN: 016842607
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: SEFSD-211 20IN DIA
Manufacturer: Greenheck Fan Corporation Dba Greenheck Fan Corp
General Description
The Damper,flue, cataloged under National Stock Number 4520-01-684-2607, 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 Greenheck Fan Corporation Dba Greenheck Fan Corp. Government technical data includes 3 specifications, 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. Current acquisition status: Active.
Greenheck Fan Corporation Dba Greenheck Fan Corp (USA)
No interchangeability data on file.
Other items in FSC 4520 — Space and Water Heating Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4520-00-000-0098
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-000-0099
4520-00-000-0099 · Item name not on file
4520-00-001-1240
4520-00-001-1240 · Item name not on file
4520-00-001-3518
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-3519
HEATING ELEMENT,ELECTRICAL,IMMER
4520-00-001-6052
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-6298
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-7726
HEATER,DUCT TYPE,PORTABLE
Frequently Asked Questions
What is NSN 4520-01-684-2607?
NSN 4520-01-684-2607 is a Damper,flue, manufactured by Greenheck Fan Corporation Dba Greenheck Fan Corp, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
What part numbers are listed for NSN 4520-01-684-2607?
NSN 4520-01-684-2607 has 1 manufacturer part number on file: SEFSD-211 20IN DIA (Greenheck Fan Corporation Dba Greenheck Fan Corp).
What are the specifications of SEFSD-211 20IN DIA?
Key specifications for SEFSD-211 20IN DIA: Mounting Method: SCREW; Shape: RECTANGULAR; Special Features: 3V BLADES; TEMPERATURE 350 DEG F V; Part Name Assigned by Controlling Agency: RECTANGULAR COMBINATION FIRE SMOKE DAMPER. 3 specifications are documented in the U.S. Government catalog.
Is NSN 4520-01-684-2607 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.