The Window,observation, cataloged under National Stock Number 9340-00-273-9575, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is General Electric Company. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-00-273-9575 |
| Primary Part Number | M9057504PC1 |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Surface Finish | POLISHED |
| Overall Thickness | 0.219 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN |
| Oval End Radius | 2.484 INCHES MINIMUM AND 2.516 INCHES MAXIMUM IN |
| Material Transparency | CLEAR |
| Style Designator | OVAL |
| Material Document and Classification | MIL-G-3787,CLASS 1,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE |
| Edge Type | BEVELED |
| Ply Quantity | 2 |
| Material | GLASS LAMINATE |
| 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 |
|---|---|
| M9057504PC1 PRIMARY | General Electric Company (USA) |
| 459153-1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 9340-00-273-9575 is a Window,observation, manufactured by General Electric Company, classified under FSC 9340, Glass Fabricated Materials. Status: active.
NSN 9340-00-273-9575 has 2 manufacturer part numbers on file: M9057504PC1 (General Electric Company), 459153-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for M9057504PC1: Surface Finish: POLISHED; Overall Thickness: 0.219 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN; Oval End Radius: 2.484 INCHES MINIMUM AND 2.516 INCHES MAXIMUM IN; Material Transparency: CLEAR. 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.