NSN 6540-00-001-0640
Part Details | COMPOUND OPHTHALMIC LENS
6540-00-001-0640 A transparent optical element having a spherical curve and a cylindrical curve used to correct vision defects of the eye.
Alternate Parts: P2.50M3.50,7.25BC,71MM,CR39, P2.50M3.50,7.25BC,71MM,CR-39, 6540-00-001-0640, 00-001-0640, 6540000010640, 000010640
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 65 | DEC 17, 1971 | 00-001-0640 | 04121 ( LENS, OPHTHALMIC, COMPOUND ) |
REFERENCE DRAWINGS & PICTURES
SPHEROCYLINDER COMPOUND
ROUND
Cross Reference | NSN 6540-00-001-0640
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| P2.50M3.50,7.25BC,71MM,CR-39 | 3N062 | DISPENSERS OPTICAL SERVICE CORP |
Technical Data | NSN 6540-00-001-0640
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | ROUND |
| DIAMETER | 71.0 MILLIMETERS MINIMUM |
| THICKNESS | 1.6 MILLIMETERS NOMINAL |
| MATERIAL AND LOCATION | PLASTIC SINGLE VISION |
| LIGHT TRANSMISSION | UNTINTED |
| CROSS-SECTIONAL SHAPE STYLE | SPHEROCYLINDER COMPOUND |
| BASE CURVE DIOPTER | 8.50 PLUS NOMINAL |
| SPHERE CURVE INSIDE DIOPTER | 2.50 PLUS MAXIMUM |
| CYLINDER CURVE INSIDE DIOPTER | 3.50 MINUS MAXIMUM |
| NONDEFINITIVE SPEC/STD DATA | 3 STYLE AND B CLASS |
| DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BY DIAMETER |
| SUPPLEMENTARY FEATURES | UNCUT |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | LENS OPHTHALMIC COMPOUND PLASTIC PLUS 2.50 ON MINUS 3.50 |