NSN 1240-00-551-1926
Part Details | OPTICAL INSTRUMENT WINDOW
1240-00-551-1926 A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.
Alternate Parts: 7591265, 1240-00-551-1926, 00-551-1926, 1240005511926, 005511926
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | NOV 17, 1971 | 00-551-1926 | 10908 ( WINDOW, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-551-1926
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 7591265 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1240-00-551-1926
| Characteristic | Specifications |
|---|---|
| REFRACTION INDEX | 1.5170 NOMINAL |
| DISPERSION | 64.5 ANGSTROMS NOMINAL |
| POLISHED SURFACE | BOTH |
| SURFACE FINISH | FINE GROUND |
| BEVELED/POLISHED EDGE PLATING MATERIAL | |
| POLISHED PERIPHERY | PROVIDED |
| DIAMETER | 2.348 INCHES NOMINAL |
| THICKNESS | 0.125 INCHES NOMINAL |
| BEVEL ANGLE IN DEG | 45.000 NOMINAL |
| BEVEL DEPTH | 0.020 INCHES NOMINAL |
