The Window,observation, cataloged under National Stock Number 9340-01-286-7460, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-01-286-7460 |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Status | ACTIVE |
| Overall Diameter | 0.371 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN |
| Surface Finish | POLISHED |
| Overall Thickness | 0.040 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Material Transparency | CLEAR |
| Style Designator | CIRCULAR |
| Edge Type | BEVELED |
| Material | GLASS |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SPECIAL FEATURES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 60511286 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| 60511286-3 | 3/1 Design control — primary reference Northrop Grumman Systems Corporation |
NSN 9340-01-286-7460 is a Window,observation, classified under FSC 9340, Glass Fabricated Materials. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 9340-01-302-9673, 9340-01-303-5060. Verify interchangeability with system specifications before substitution.
Key specifications for 9340-01-286-7460: Overall Diameter: 0.371 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN; Surface Finish: POLISHED; Overall Thickness: 0.040 INCHES NOMINAL IN; Criticality Code Justification: FEAT. 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.