NSN 1240-00-622-4990 006224990
Product Details | OPTICAL INSTRUMENT LENS
1240-00-622-4990 An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see WINDOW, OPTICAL INSTRUMENT. Excludes RETICLE, OPTICAL INSTRUMENT.20258550055Night Vision Equipment, Emitted and Reflected Radiation66500063Optical Instruments, Test Equipment, Components and Accessories
Part Alternates: 006224990
Fire Control Equipment | Optical Sighting and Ranging Equipment
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | 00-622-4990 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
Drawings & Photos | NSN 1240-00-622-4990
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Technical Data | NSN 1240-00-622-4990
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, FORM PLATES |
| COMPOUND LENS STYLE | E1 DOUBLET |
| INDIVIDUAL LENS STYLE | D1 DOUBLE CONVEX AND D5 PLANO-CONCAVE |
| DIAMETER | 1.696 INCHES MINIMUM AND 1.699 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.280 INCHES NOMINAL AND 0.118 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.398 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 3.668 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 3.668 INCHES |
| EQUIVALENT FOCAL LENGTH | 8.819 INCHES |
| BACK FOCAL LENGTH | 8.608 INCHES |
| FRONT FOCAL LENGTH | 8.210 INCHES |
| REFRACTION INDEX | 1.5125 NOMINAL AND 1.6210 NOMINAL |
| ABBE CONSTANT | 60.500 AND 36.200 |
| MANUFACTURERS CODE | 19200 |
| DESIGN CONTROL REFERENCE | 8289293 |
Restrictions/Controls & Freight Information | NSN 1240-00-622-4990
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||