NSN 1240-00-698-5869 006985869
Product Details | OPTICAL INSTRUMENT LENS
1240-00-698-5869 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: 006985869
Fire Control Equipment | Optical Sighting and Ranging Equipment
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | 00-698-5869 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
Drawings & Photos | NSN 1240-00-698-5869
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Technical Data | NSN 1240-00-698-5869
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C |
| COMPOUND LENS STYLE | E1 DOUBLET |
| INDIVIDUAL LENS STYLE | D1 DOUBLE CONVEX AND D6 MENISCUS DIVERGING |
| DIAMETER | 1.080 INCHES NOMINAL |
| AXIAL THICKNESS | 0.240 INCHES NOMINAL AND 0.125 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.365 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.296 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 9.117 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 1.353 INCHES |
| EQUIVALENT FOCAL LENGTH | 5.327 INCHES |
| BACK FOCAL LENGTH | 5.302 INCHES |
| REFRACTION INDEX | 1.5280 NOMINAL AND 1.6890 NOMINAL |
| ABBE CONSTANT | 51.600 AND 30.900 |
| III FSC APPLICATION DATA | TELESCOPE,INTEGRATED WITH FIRE CONTROL EQUIPMENT |
| MANUFACTURERS CODE | 19200 |
| DESIGN CONTROL REFERENCE | 7632375 |
Restrictions/Controls & Freight Information | NSN 1240-00-698-5869
| 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 | ||