Part Details | OPTICAL INSTRUMENT WINDOW
1240-00-171-6771 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: 265936PC1, 1240-00-171-6771, 00-171-6771, 1240001716771, 001716771
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1963 | 00-171-6771 | 10908 ( WINDOW, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-171-6771
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 265936PC1 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 1240-00-171-6771
| Characteristic | Specifications |
|---|---|
| REFRACTION INDEX | 1.5235 NOMINAL |
| POLISHED SURFACE | BOTH |
| POLISHED PERIPHERY | NOT PROVIDED |
| WIDTH | 83.950 MILLIMETERS NOMINAL |
| LENGTH | 129.920 MILLIMETERS NOMINAL |
| THICKNESS | 7.770 MILLIMETERS NOMINAL |
| BEVEL ANGLE IN DEG | 45.000 NOMINAL |
| BEVEL DEPTH | 1.000 MILLIMETERS MINIMUM AND 2.360 MILLIMETERS MAXIMUM |
| FSC APPLICATION DATA | PERISCOPE MK28 MODS 0 AND 1 |