NSN 6540-00-890-1038
Part Details | SEMIFINISHED COMPOUND OPHTHALMIC LENS BLANK
6540-00-890-1038 A transparent molded optical element having a spherical diopter base curve and a cylindrical diopter cross curve, an approximate size and shape, and has been ground and polished to a finished curvature on one surface only.
Alternate Parts: MILL16991, 6540-00-890-1038, 00-890-1038, 6540008901038, 008901038
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
65 | JAN 01, 1962 | 00-890-1038 | 30302 ( LENS BLANK, OPHTHALMIC, COMPOUND, SEMIFINISHED ) |
REFERENCE DRAWINGS & PICTURES
SPHEROCYLINDER COMPOUND
ROUND-RECTANGULAR WITH ROUNDED CORNERS
Cross Reference | NSN 6540-00-890-1038
Part Number | Cage Code | Manufacturer |
---|---|---|
MILL16991 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 6540-00-890-1038
Characteristic | Specifications |
---|---|
STYLE DESIGNATOR | ROUND-RECTANGULAR WITH ROUNDED CORNERS |
DIAMETER | 57.0 MILLIMETERS MINIMUM AND 62.0 MILLIMETERS MAXIMUM |
WIDTH | 54.0 MILLIMETERS MINIMUM AND 60.0 MILLIMETERS MAXIMUM |
HEIGHT | 54.0 MILLIMETERS MINIMUM AND 60.0 MILLIMETERS MAXIMUM |
THICKNESS | 5.5 MILLIMETERS NOMINAL |
MATERIAL AND LOCATION | GLASS, SODA-LIME SINGLE VISION |
LIGHT TRANSMISSION | UNTINTED |
CROSS-SECTIONAL SHAPE STYLE | SPHEROCYLINDER COMPOUND |
BASE CURVE DIOPTER | 6.50 PLUS NOMINAL |
CYLINDER CURVE OUTSIDE DIOPTER | 1.25 PLUS MAXIMUM |
NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND C CLASS |
PART NAME ASSIGNED BY CONTROLLING AGENCY | LENS BLANK OPHTH COMPOUND SEMIFINISHED GLASS +6.5 +1.25 DIOPTERS |