The Terminal,ventilation Duct, cataloged under National Stock Number 4520-01-490-3148, 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 Us Army Aviation and Missile Command. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4520-01-490-3148 |
| Primary Part Number | 13502871 |
| Item Name | Terminal,ventilation Duct |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Overall Thickness | 1.350 INCHES NOMINAL IN |
| Style Designator | STRAIGHT |
| Damper | NOT INCLUDED |
| Material | PLASTIC |
| 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 |
|---|---|
| 13502871 PRIMARY | Us Army Aviation and Missile Command (USA) |
| 72R2140 | Red Dot Corporation Dba Red Dot Corp (USA) |
| RD-5552-OP PRIMARY | Red Dot Corporation Dba Red Dot Corp (USA) |
| Reference | Meaning |
|---|---|
| 75R2140 | 5/9 Secondary reference Red Dot Corporation Dba Red Dot Corp |
NSN 4520-01-490-3148 is a Terminal,ventilation Duct, manufactured by Us Army Aviation and Missile Command, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-490-3148 has 3 manufacturer part numbers on file: 13502871 (Us Army Aviation and Missile Command), 72R2140 (Red Dot Corporation Dba Red Dot Corp), RD-5552-OP (Red Dot Corporation Dba Red Dot Corp).
Key specifications for 13502871: Overall Thickness: 1.350 INCHES NOMINAL IN; Style Designator: STRAIGHT; Overall Length: 5.400 INCHES NOMINAL IN; Overall Width: 2.200 INCHES NOMINAL IN. 4 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.