The Window,observation, cataloged under National Stock Number 9340-00-992-4869, 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 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-00-992-4869 |
| Primary Part Number | 1656110 |
| 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 |
| Overall Diameter | 5.406 INCHES NOMINAL IN |
| Overall Thickness | 0.188 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | CIRCULAR |
| Ply Quantity | 1 |
| 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 |
|---|---|
| 1656110 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| BUWEPSDWG1656110 | 3/9 Design control — primary reference U.S. Government activity |
| BUWEPSDWG1656110 | 5/2 Secondary reference U.S. Government activity |
| BUWEPSDWG1656110 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
NSN 9340-00-992-4869 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 9340-00-992-4869 has 1 manufacturer part number on file: 1656110 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 6505-01-713-8267. Verify interchangeability with system specifications before substitution.
Key specifications for 1656110: Overall Diameter: 5.406 INCHES NOMINAL IN; Overall Thickness: 0.188 INCHES NOMINAL IN; Material Transparency: CLEAR; Style Designator: CIRCULAR. 5 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.