The Window,observation, cataloged under National Stock Number 9340-00-334-3377, 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 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 9340-00-334-3377 |
| Primary Part Number | 10S6939 |
| 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 | 8.600 MILLIMETERS NOMINAL MM |
| Surface Finish | POLISHED |
| Overall Thickness | 2.000 MILLIMETERS NOMINAL MM |
| Material Transparency | CLEAR |
| Style Designator | CIRCULAR |
| Material Document and Classification | DD-G-541,TYPE 1,CLASS B FED SPEC SINGLE MATERIAL RESPONSE |
| Edge Type | BEVELED |
| Ply Quantity | 1 |
| Material | GLASS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 9340-00-334-3377 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 9340-00-334-3377 has 3 manufacturer part numbers on file: 789-606 (Leica Inc Surveying and Photogrammetry Systems Div), 789-606 (American Optical Co), 10S6939 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 5915-01-571-2537. Verify interchangeability with system specifications before substitution.
Key specifications for 10S6939: Overall Diameter: 8.600 MILLIMETERS NOMINAL MM; Surface Finish: POLISHED; Overall Thickness: 2.000 MILLIMETERS NOMINAL MM; 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.