The Window,observation, cataloged under National Stock Number 9340-00-255-9451, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 13 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 | 9340-00-255-9451 |
| Primary Part Number | 222174PC4 |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Fourth Corner Radius | 1.220 INCHES NOMINAL IN |
| First Corner Radius | 1.220 INCHES NOMINAL IN |
| Second Corner Radius | 1.220 INCHES NOMINAL IN |
| Surface Finish | POLISHED |
| Overall Thickness | 0.500 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | ROUNDED CORNERS |
| Material Document and Classification | DD-G-451 FED SPEC SINGLE MATERIAL RESPONSE |
| Edge Type | FLAT FINISH |
| Ply Quantity | 2 |
| Environmental Protection | SHATTER PROOF |
| Material | GLASS |
| Third Corner Radius | 1.220 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 |
|---|---|
| 222174PC4 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 9340-00-255-9451 is a Window,observation, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 9340, Glass Fabricated Materials. Status: active.
NSN 9340-00-255-9451 has 1 manufacturer part number on file: 222174PC4 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 222174PC4: Fourth Corner Radius: 1.220 INCHES NOMINAL IN; First Corner Radius: 1.220 INCHES NOMINAL IN; Second Corner Radius: 1.220 INCHES NOMINAL IN; Surface Finish: POLISHED. 13 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.