The Damper,flue, cataloged under National Stock Number 4520-01-549-4166, 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 Itw Food Equipment Group Llc Dba Gaylord Industries. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Damper,flue |
| FSC / FSG | 4520 — Space and Water Heating Equipment (FSG 45) |
| Manufacturers | Itw Food Equipment Group Llc Dba Gaylord Industries (CAGE 09051) |
| Parameter | Value |
|---|---|
| NSN | 4520-01-549-4166 |
| Primary Part Number | N68G-15-16-16-R-SS-440 |
| Item Name | Damper,flue |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Itw Food Equipment Group Llc Dba Gaylord Industries |
| 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 |
|---|---|
| N68G-15-16-16-R-SS-440 PRIMARY | Itw Food Equipment Group Llc Dba Gaylord Industries (USA) |
| Reference | Meaning |
|---|---|
| N-2131 REV D | 5/1 Secondary reference Itw Food Equipment Group Llc Dba Gaylord Industries |
NSN 4520-01-549-4166 is a Damper,flue, manufactured by Itw Food Equipment Group Llc Dba Gaylord Industries, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-549-4166 has 1 manufacturer part number on file: N68G-15-16-16-R-SS-440 (Itw Food Equipment Group Llc Dba Gaylord Industries).
3 possible matches (shared part number, not a government interchangeability claim): 4520-01-549-4167, 4520-01-549-4172, 4520-01-550-2118. Verify interchangeability with system specifications before substitution.
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.