The Damper,flue, cataloged under National Stock Number 4520-01-082-1725, 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 Johnson Controls, Inc Div Building Efficiency. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-082-1725 |
| Primary Part Number | 47-68-13 |
| Item Name | Damper,flue |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Johnson Controls, Inc Div Building Efficiency |
| Status | ACTIVE |
| FSC Application Data | WSS98531SELT3 BRINE CHILLER |
| Overall Thickness | 3.500 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Shape | RECTANGULAR |
| Sheet Metal Gage Size | 13 |
| Surface Treatment | ZINC |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 47-68-13 PRIMARY | Johnson Controls, Inc Div Building Efficiency (USA) |
| Reference | Meaning |
|---|---|
| WRG95823 | 7/2 Vendor item drawing reference Carrier Corp |
NSN 4520-01-082-1725 is a Damper,flue, manufactured by Johnson Controls, Inc Div Building Efficiency, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-082-1725 has 1 manufacturer part number on file: 47-68-13 (Johnson Controls, Inc Div Building Efficiency).
Key specifications for 47-68-13: FSC Application Data: WSS98531SELT3 BRINE CHILLER; Overall Thickness: 3.500 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Shape: RECTANGULAR. 7 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.