NSN 1240-00-531-3721
Part Details | OPTICAL INSTRUMENT WINDOW
1240-00-531-3721 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: 248579PC1, 1240-00-531-3721, 00-531-3721, 1240005313721, 005313721
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1963 | 00-531-3721 | 10908 ( WINDOW, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-531-3721
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 248579PC1 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 1240-00-531-3721
| Characteristic | Specifications |
|---|---|
| REFRACTION INDEX | 1.5230 NOMINAL |
| POLISHED SURFACE | BOTH |
| REFLECTION REDUCING SURFACE | BOTH |
| POLISHED PERIPHERY | NOT PROVIDED |
| DIAMETER | 215.00 MILLIMETERS NOMINAL |
| LENGTH | 373.000 MILLIMETERS NOMINAL |
| THICKNESS | 14.229 MILLIMETERS NOMINAL |
| SPECIAL FEATURES | 38.0 MM (1.4961 IN.) RADIUS ON ALL FOUR CORNERS |
| FSC APPLICATION DATA | TELESCOPE,STRAIGHT |
