The Window,observation, cataloged under National Stock Number 9340-01-270-3288, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 9340-01-270-3288 |
| Primary Part Number | 1884069 ITEM 39 |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Fourth Corner Radius | 0.156 INCHES NOMINAL IN |
| First Corner Radius | 0.156 INCHES NOMINAL IN |
| Second Corner Radius | 0.156 INCHES NOMINAL IN |
| Overall Thickness | 0.199 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | ROUNDED CORNERS |
| Edge Type | BEVELED |
| Material | GLASS |
| Third Corner Radius | 0.156 INCHES NOMINAL IN |
| 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 |
|---|---|
| 1884069 ITEM 39 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1857870 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| PL1891975 ITEM 6 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 9340-01-270-3288 is a Window,observation, manufactured by Northrop Grumman Systems Corporation, classified under FSC 9340, Glass Fabricated Materials. Status: active.
NSN 9340-01-270-3288 has 2 manufacturer part numbers on file: 1884069 ITEM 39 (Northrop Grumman Systems Corporation), 1857870 (Northrop Grumman Systems Corporation).
Key specifications for 1884069 ITEM 39: Fourth Corner Radius: 0.156 INCHES NOMINAL IN; First Corner Radius: 0.156 INCHES NOMINAL IN; Second Corner Radius: 0.156 INCHES NOMINAL IN; Overall Thickness: 0.199 INCHES NOMINAL IN. 9 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.