NSN 6540-00-164-4921
Part Details | COMPOUND OPHTHALMIC LENS
6540-00-164-4921 A transparent optical element having a spherical curve and a cylindrical curve used to correct vision defects of the eye.
Alternate Parts: MILL16991, 6540-00-164-4921, 00-164-4921, 6540001644921, 001644921
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 65 | JAN 01, 1963 | 00-164-4921 | 04121 ( LENS, OPHTHALMIC, COMPOUND ) |
REFERENCE DRAWINGS & PICTURES
SPHEROCYLINDER COMPOUND
ROUND-RECTANGULAR WITH ROUNDED CORNERS
Cross Reference | NSN 6540-00-164-4921
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MILL16991 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 6540-00-164-4921
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | ROUND-RECTANGULAR WITH ROUNDED CORNERS |
| DIAMETER | 57.0 MILLIMETERS MINIMUM AND 65.0 MILLIMETERS MAXIMUM |
| WIDTH | 54.0 MILLIMETERS MINIMUM AND 60.0 MILLIMETERS MAXIMUM |
| HEIGHT | 54.0 MILLIMETERS MINIMUM AND 60.0 MILLIMETERS MAXIMUM |
| MATERIAL AND LOCATION | GLASS, SODA-LIME SINGLE VISION |
| LIGHT TRANSMISSION | UNTINTED |
| CROSS-SECTIONAL SHAPE STYLE | SPHEROCYLINDER COMPOUND |
| SPHERE CURVE OUTSIDE DIOPTER | 2.50 MINUS MAXIMUM |
| CYLINDER CURVE OUTSIDE DIOPTER | 4.00 PLUS MAXIMUM |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 4 STYLE AND F CLASS |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY DIMENSIONS |
| SUPPLEMENTARY FEATURES | UNCUT |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | LENS OPHTHALMIC COMPOUND MINUS 2.50 WITH PLUS 4.00 |