NSN 6650-00-152-7974
Part Details | OPTICAL INSTRUMENT LENS
6650-00-152-7974 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.
Alternate Parts: 265453REVF, 654752REVA, 6650-00-152-7974, 00-152-7974, 6650001527974, 001527974
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-152-7974 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-152-7974
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 265453REVF | 56232 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
| 654752REVA | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-152-7974
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND PLANO-CONCAVE |
| DIAMETER | 2.204 INCHES MINIMUM AND 2.205 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.866 INCHES NOMINAL AND 0.157 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 1.024 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.619 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -1.705 INCHES AND 1.705 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -1.705 INCHES |
| EQUIVALENT FOCAL LENGTH | 3.952 INCHES |
| BACK FOCAL LENGTH | 4.090 INCHES |
| FRONT FOCAL LENGTH | 3.170 INCHES |
| REFRACTION INDEX | 1.5170 NOMINAL AND 1.6210 NOMINAL |
| ABBE CONSTANT | B64.500$$B36.200 |
| FSC APPLICATION DATA | FIRE CONTROL COMPUTING SIGHTS AND DEVICES |