Part Details | COMPOUND OPHTHALMIC LENS
6540-00-164-4684 A transparent optical element having a spherical curve and a cylindrical curve used to correct vision defects of the eye.
Alternate Parts: MILL16991, 6540-00-164-4684, 00-164-4684, 6540001644684, 001644684
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 65 | JAN 01, 1963 | 00-164-4684 | 04121 ( LENS, OPHTHALMIC, COMPOUND ) |
REFERENCE DRAWINGS & PICTURES
SPHEROCYLINDER COMPOUND
ROUND-RECTANGULAR WITH ROUNDED CORNERS
Cross Reference | NSN 6540-00-164-4684
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MILL16991 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 6540-00-164-4684
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | ROUND-RECTANGULAR WITH ROUNDED CORNERS |
| DIAMETER | 54.0 MILLIMETERS MINIMUM AND 65.0 MILLIMETERS MAXIMUM |
| WIDTH | 52.0 MILLIMETERS MINIMUM AND 60.0 MILLIMETERS MAXIMUM |
| HEIGHT | 52.0 MILLIMETERS MINIMUM AND 60.0 MILLIMETERS MAXIMUM |
| THICKNESS | 2.0 MILLIMETERS NOMINAL |
| MATERIAL AND LOCATION | GLASS, SODA-LIME SINGLE VISION |
| LIGHT TRANSMISSION | UNTINTED |
| CROSS-SECTIONAL SHAPE STYLE | SPHEROCYLINDER COMPOUND |
| BASE CURVE DIOPTER | 4.25 PLUS NOMINAL |
| CROSS CURVE DIOPTER | 0.25 PLUS NOMINAL |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 3 STYLE AND F CLASS |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY MAXIMUM DIAMETER |
| SUPPLEMENTARY FEATURES | UNCUT |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | LENS OPHTHALMIC COMPOUND PLUS 4.25 WITH PLUS 0.25 |