NSN 6650-00-803-2753
Part Details | DIOPTER SCALE
6650-00-803-2753 A graduated scale, usually cylindrical in shape, attached to, or forming a part of, the focusing nut or knob of the eyepiece of an optical instrument. It is read in conjunction with a line or dart indicator to measure the change in refracting power of the eyepiece, in diopters, and introduces correction to compensate for the eyesight variation of the observer. It may have a knurled periphery and/or teeth on the inside diameter.
Alternate Parts: 400533901PC28, 400-533901PC28, 400533880PC28, 400-533880PC28, 6650-00-803-2753, 00-803-2753, 6650008032753, 008032753
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-803-2753 | 21868 ( SCALE, DIOPTER ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6650-00-803-2753
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 400-533901PC28 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 400-533880PC28 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
Technical Data | NSN 6650-00-803-2753
| Characteristic | Specifications |
|---|---|
| SCALE DIVISION QUANTITY | 4 |
| SCALE UNIT OF MEASURE INSCRIPTION | P0,M1,2,3, |
| INSCRIPTION COLOR | WHITE |
| OVERALL OUTSIDE DIAMETER | 0.750 INCHES NOMINAL |
| INSIDE DIAMETER | 0.659 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM |
| MOUNTING CONFIGURATION | 1 SETSCREW |
| SPECIAL FEATURES | ENGRAVE ALL CHARACTERS 0.060 IN. H BY 0.005 IN. DEEP BY 0.010 IN. W |