NSN 1240-00-213-7026
Part Details | DIOPTER SCALE
1240-00-213-7026 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: 11737314, 1240-00-213-7026, 00-213-7026, 1240002137026, 002137026
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | APR 20, 1973 | 00-213-7026 | 21868 ( SCALE, DIOPTER ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-213-7026
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 11737314 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1240-00-213-7026
| Characteristic | Specifications |
|---|---|
| SURFACE TREATMENT | PASSIVATE |
| SCALE DIVISION QUANTITY | 6 |
| SCALE UNIT OF MEASURE INSCRIPTION | IOPTERS,MINUS 3 TO PLUS 3 |
| INSCRIPTION COLOR | BLACK |
| OVERALL OUTSIDE DIAMETER | 2.840 INCHES MINIMUM AND 2.850 INCHES MAXIMUM |
| INSIDE DIAMETER | 2.538 INCHES MINIMUM AND 2.542 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.950 INCHES MINIMUM AND 0.970 INCHES MAXIMUM |
| MOUNTING CONFIGURATION | THREE SETSCREWS 0.138 IN.-32UNC-2A |
| SPECIAL FEATURES | EIGHT CONCAVE SECTIONS ON PERIPHERY,0.500 IN. RADIUS BY CENTERED 0.235 AND 0.435 IN. FROM LARGER DIAMETER END |
| FSC APPLICATION DATA | RECEIVER-TRANSMITTER,LASER |
