The Window,observation, cataloged under National Stock Number 9340-00-643-2946, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-00-643-2946 |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Status | ACTIVE |
| Overall Diameter | 2.094 INCHES MINIMUM AND 2.109 INCHES MAXIMUM IN |
| Surface Finish | POLISHED |
| Overall Thickness | 0.125 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | CIRCULAR |
| Edge Type | FLAT FINISH |
| Ply Quantity | 1 |
| Material | PLASTIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 8892351SUB2PT1 | 5/9 Secondary reference Rca Corp Distributor and Special Products Div |
| 8892351-1SUB2PT1 | 3/9 Design control — primary reference Rca Corp Distributor and Special Products Div |
NSN 9340-00-643-2946 is a Window,observation, classified under FSC 9340, Glass Fabricated Materials. Status: active.
Key specifications for 9340-00-643-2946: Overall Diameter: 2.094 INCHES MINIMUM AND 2.109 INCHES MAXIMUM IN; Surface Finish: POLISHED; Overall Thickness: 0.125 INCHES NOMINAL IN; Material Transparency: CLEAR. 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.