The Window,observation, cataloged under National Stock Number 9340-00-541-7817, is classified within Federal Supply Class 9340 (No Item Name Available) of the Nonmetallic Fabricated Materials group. The primary manufacturer of record is Corning Glass Works. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 9340-00-541-7817 |
| Primary Part Number | 7740-3IN DIA.,1/4IN.THICK |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — No Item Name Available |
| Manufacturer | Corning Glass Works |
| Status | CANCELLED |
| Ply Quantity | 1 |
| Edge Type | FLAT FINISH |
| Style Designator | CIRCULAR |
| Material | GLASS |
| Material Transparency | CLEAR |
| Surface Finish | FINE FINISHED |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Overall Diameter | 3.000 INCHES NOMINAL IN |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 851-6 | Aqua-Chem Inc Cleaver-Brooks Div (USA) |
| 694830 | Corning Glass Works (USA) |
| 7740-3IN DIA.,1/4IN.THICK PRIMARY | Corning Glass Works (USA) |
NSN 9340-00-541-7817 is a Window,observation, manufactured by Corning Glass Works, classified under FSC 9340 (No Item Name Available). Status: cancelled.
NSN 9340-00-541-7817 has 3 cross-referenced part numbers: 851-6 (Aqua-Chem Inc Cleaver-Brooks Div), 694830 (Corning Glass Works), 7740-3IN DIA.,1/4IN.THICK (Corning Glass Works).
There are 8 known substitutes for 9340-00-541-7817: 6220-00-240-3300, 7520-00-405-5753, 5930-00-817-3524 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 7740-3IN DIA.,1/4IN.THICK: Ply Quantity: 1; Edge Type: FLAT FINISH; Style Designator: CIRCULAR; Material: GLASS. 9 total characteristics are documented in the Federal Logistics Information System.
NSN 9340-00-541-7817 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.