NSN 1240-00-557-5640
Part Details | OPTICAL INSTRUMENT WINDOW
1240-00-557-5640 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: 105610PC1, 1240-00-557-5640, 00-557-5640, 1240005575640, 005575640
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1963 | 00-557-5640 | 10908 ( WINDOW, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-557-5640
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 105610PC1 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 1240-00-557-5640
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS |
| REFRACTION INDEX | 1.5230 NOMINAL |
| POLISHED SURFACE | BOTH |
| POLISHED PERIPHERY | NOT PROVIDED |
| WIDTH | 31.000 MILLIMETERS NOMINAL |
| LENGTH | 77.000 MILLIMETERS NOMINAL |
| THICKNESS | 3.000 MILLIMETERS NOMINAL |
| SPECIAL FEATURES | W/ROUNDED CORNERS 5.00 MM RADIUS |
| FSC APPLICATION DATA | FIRE CONTROL RANGE FINDER MK 33 |
