The Actuator,damper,pneum, cataloged under National Stock Number 4520-01-563-5985, 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 Fl Centek Industries Inc Dba Delta T Systems. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4520-01-563-5985 |
| Primary Part Number | 273-PDA1 |
| Item Name | Actuator,damper,pneum |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Fl Centek Industries Inc Dba Delta T Systems |
| Status | ACTIVE |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 273-PDA1 PRIMARY | Fl Centek Industries Inc Dba Delta T Systems (USA) |
| Reference | Meaning |
|---|---|
| 273-PDA1 | 3/9 Design control — primary reference Fl Centek Industries Inc Dba Delta T Systems |
NSN 4520-01-563-5985 is a Actuator,damper,pneum, manufactured by Fl Centek Industries Inc Dba Delta T Systems, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-563-5985 has 1 manufacturer part number on file: 273-PDA1 (Fl Centek Industries Inc Dba Delta T Systems).
Key specifications for 273-PDA1: Overall Height: 1.500 INCHES NOMINAL IN; Overall Length: 3.750 INCHES NOMINAL IN; Overall Width: 3.125 INCHES NOMINAL IN; End Item Identification: DAMER, VENT 12 IN. X 21 IN. PNEUMATIC; DAMPER, VENT 6 IN. X 25 IN. PNEUMATIC IN. 1 specification is 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.