NSN 1240-00-518-2961 005182961
Product Details | OPTICAL INSTRUMENT LENS
1240-00-518-2961 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: 005182961
Fire Control Equipment | Optical Sighting and Ranging Equipment
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | 00-518-2961 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
Drawings & Photos | NSN 1240-00-518-2961
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Related Products | NSN 1240-00-518-2961
Technical Data | NSN 1240-00-518-2961
| 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 | 1.181 INCHES NOMINAL |
| AXIAL THICKNESS | 0.079 INCHES NOMINAL AND 0.496 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.575 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.425 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 59.206 MILLIMETERS |
| ELEMENT RIGHT SURFACE RADIUS | 0.841 INCHES |
| EQUIVALENT FOCAL LENGTH | 2.596 INCHES |
| BACK FOCAL LENGTH | 2.660 INCHES |
| FRONT FOCAL LENGTH | 2.085 INCHES |
| REFRACTION INDEX | 1.6490 NOMINAL AND 1.5720 NOMINAL |
| ABBE CONSTANT | 33.800 AND 57.400 |
| III FSC APPLICATION DATA | TELESCOPE,ELBOW,INTEGRATED WITH FIRE CONTROL EQUIP |
| MANUFACTURERS CODE | 19200 |
| DESIGN CONTROL REFERENCE | 5182961 |
Restrictions/Controls & Freight Information | NSN 1240-00-518-2961
| 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 | ||