The Window,observation, cataloged under National Stock Number 9340-01-280-5366, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Cornell-Carr Co., Inc.. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-01-280-5366 |
| Primary Part Number | KS-23907A |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Manufacturer | Cornell-Carr Co., Inc. |
| Status | ACTIVE |
| Overall Thickness | 1.688 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | SQUARE CORNERS |
| Features Provided | FRAME AND TEMPERED |
| Ply Quantity | 2 |
| Environmental Protection | HIGH TEMPERATURE RESISTANT |
| Material | GLASS BOROSILICATE |
| 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 |
|---|---|
| KS-23907A PRIMARY | Cornell-Carr Co., Inc. (USA) |
| KN-325F 33-11/16X28 | Cornell-Carr Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| KS-23907A | 5/9 Secondary reference U.S. Government activity |
| KN-325F 33-11/16X28 | 5/9 Secondary reference U.S. Government activity |
| KS-23907 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 9340-01-280-5366 is a Window,observation, manufactured by Cornell-Carr Co., Inc., classified under FSC 9340, Glass Fabricated Materials. Status: active.
NSN 9340-01-280-5366 has 2 manufacturer part numbers on file: KS-23907A (Cornell-Carr Co., Inc.), KN-325F 33-11/16X28 (Cornell-Carr Co., Inc.).
Key specifications for KS-23907A: Overall Thickness: 1.688 INCHES NOMINAL IN; Material Transparency: CLEAR; Style Designator: SQUARE CORNERS; Overall Length: 33.688 INCHES NOMINAL IN. 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.