Part Details | OPTICAL INSTRUMENT WINDOW
1240-00-143-1599 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: 265862PC10, 1240-00-143-1599, 00-143-1599, 1240001431599, 001431599
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1963 | 00-143-1599 | 10908 ( WINDOW, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-143-1599
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 265862PC10 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 1240-00-143-1599
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| REFRACTION INDEX | 1.5110 NOMINAL |
| DISPERSION | 63.5 MILLIMICRONS NOMINAL |
| POLISHED SURFACE | BOTH |
| DIFFUSION PRODUCING SURFACE | BOTH |
| SURFACE FINISH | GROUND AND POLISHED |
| REFLECTION REDUCING SURFACE | BOTH |
| POLISHED PERIPHERY | NOT PROVIDED |
| DIAMETER | 20.0 MILLIMETERS NOMINAL |
| LENGTH | 3.0 MILLIMETERS NOMINAL |