The Window,observation, cataloged under National Stock Number 9340-01-144-9522, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Mark Optics, Inc.. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-01-144-9522 |
| Primary Part Number | 350460-001 |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Manufacturer | Mark Optics, Inc. |
| Status | ACTIVE |
| Surface Finish | POLISHED |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | SQUARE CORNERS |
| Material Document and Classification | MIL-W-1366,GROUP C MIL SPEC SINGLE MATERIAL RESPONSE |
| Edge Type | BEVELED |
| Ply Quantity | 1 |
| Material | GLASS PLATE |
| 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 |
|---|---|
| 350460-001 PRIMARY | Mark Optics, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 350460-001 | 5/9 Secondary reference Hamilton Sundstrand Corporation Div Mission Systems |
NSN 9340-01-144-9522 is a Window,observation, manufactured by Mark Optics, Inc., classified under FSC 9340, Glass Fabricated Materials. Status: active.
NSN 9340-01-144-9522 has 1 manufacturer part number on file: 350460-001 (Mark Optics, Inc.).
Key specifications for 350460-001: Surface Finish: POLISHED; Overall Thickness: 0.250 INCHES NOMINAL IN; Material Transparency: CLEAR; Style Designator: SQUARE CORNERS. 8 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.