NSN 1240-00-507-9256 005079256
Product Details | OPTICAL INSTRUMENT LENS
1240-00-507-9256 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: 005079256
Fire Control Equipment | Optical Sighting and Ranging Equipment
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | 00-507-9256 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
Drawings & Photos | NSN 1240-00-507-9256
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Technical Data | NSN 1240-00-507-9256
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE B |
| COMPOUND LENS STYLE | E1 DOUBLET |
| INDIVIDUAL LENS STYLE | D5 PLANO-CONCAVE AND D6 MENISCUS DIVERGING |
| DIAMETER | 1.500 INCHES NOMINAL |
| AXIAL THICKNESS | 0.202 INCHES NOMINAL AND 0.150 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.352 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.309 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 42.390 MILLIMETERS |
| ELEMENT RIGHT SURFACE RADIUS | 3.117 INCHES |
| EQUIVALENT FOCAL LENGTH | 14.937 INCHES |
| BACK FOCAL LENGTH | 14.932 INCHES |
| FRONT FOCAL LENGTH | ANY ACCEPTABLE |
| REFRACTION INDEX | 1.5230 NOMINAL AND 1.6050 NOMINAL |
| ABBE CONSTANT | 58.600 AND 38.000 |
| III FSC APPLICATION DATA | FINDER,RANGE,T42E1,INTEGRATED WITH FIRE CONTROL EQUIPMENT |
| MANUFACTURERS CODE | 19200 |
| DESIGN CONTROL REFERENCE | 8200009 |
Restrictions/Controls & Freight Information | NSN 1240-00-507-9256
| 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 | ||