NSN 1240-00-171-4177
Part Details | OPTICAL INSTRUMENT WINDOW
1240-00-171-4177 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: 1235962, 30091, 1240-00-171-4177, 00-171-4177, 1240001714177, 001714177
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1963 | 00-171-4177 | 10908 ( WINDOW, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-171-4177
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1235962 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| 30091 | 21587 | OPTICAL TECHNOLOGY DEVICES INC |
Technical Data | NSN 1240-00-171-4177
| Characteristic | Specifications |
|---|---|
| REFRACTION INDEX | 1.5170 NOMINAL |
| DISPERSION | 64.5 ANGSTROMS NOMINAL |
| REFLECTION REDUCING SURFACE | ONE |
| POLISHED PERIPHERY | NOT PROVIDED |
| WIDTH | 287.000 MILLIMETERS MINIMUM AND 288.000 MILLIMETERS MAXIMUM |
| LENGTH | 349.000 MILLIMETERS MINIMUM AND 350.000 MILLIMETERS MAXIMUM |
| THICKNESS | 18.800 MILLIMETERS MINIMUM AND 19.200 MILLIMETERS MAXIMUM |
| BEVEL ANGLE IN DEG | 45.000 NOMINAL |
| BEVEL DEPTH | 2.000 MILLIMETERS NOMINAL |
| SPECIAL FEATURES | FOUR ROUNDED CORNERS 26.5 MM PLUS 1.0,MINUS 0.0 (1.0433 IN.) RADIUS |
| FSC APPLICATION DATA | TELESCOPE MK 102 MOD 3 |
