The Window,observation, cataloged under National Stock Number 9330-01-461-5892, is classified within Federal Supply Class 9330 (Plastics Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Vertex Modernization and Sustainment Llc. Government technical data includes 9 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.
| Parameter | Value |
|---|---|
| NSN | 9330-01-461-5892 |
| Primary Part Number | 3520AS409 |
| Item Name | Window,observation |
| FSC / FSG | 9330 / 93 — Plastics Fabricated Materials |
| Manufacturer | Vertex Modernization and Sustainment Llc |
| Status | ACTIVE |
| Fourth Corner Radius | 0.904 INCHES NOMINAL IN |
| First Corner Radius | 0.094 INCHES NOMINAL IN |
| Second Corner Radius | 0.094 INCHES NOMINAL IN |
| Material Transparency | TRANSLUCENT |
| Style Designator | ROUNDED CORNERS |
| Edge Type | HALF ROUND |
| Color | BLACK |
| Material | PLASTIC |
| Third Corner Radius | 0.094 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3520AS409 PRIMARY | Vertex Modernization and Sustainment Llc (USA) |
NSN 9330-01-461-5892 is a Window,observation, manufactured by Vertex Modernization and Sustainment Llc, classified under FSC 9330, Plastics Fabricated Materials. Status: active.
NSN 9330-01-461-5892 has 1 manufacturer part number on file: 3520AS409 (Vertex Modernization and Sustainment Llc).
Key specifications for 3520AS409: Fourth Corner Radius: 0.904 INCHES NOMINAL IN; First Corner Radius: 0.094 INCHES NOMINAL IN; Second Corner Radius: 0.094 INCHES NOMINAL IN; Material Transparency: TRANSLUCENT. 9 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.