NSN 1240-00-393-0441
Part Details | DIOPTER SCALE
1240-00-393-0441 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: 11733429, 11733429, 11733429, 1240-00-393-0441, 00-393-0441, 1240003930441, 003930441
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | APR 01, 1974 | 00-393-0441 | 21868 ( SCALE, DIOPTER ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-393-0441
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 11733429 | 15716 | FOREST SCIENTIFIC INC |
| 11733429 | 2S308 | FREEHOLD MANUFACTURING ASSEMBLY COINC |
| 11733429 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1240-00-393-0441
| Characteristic | Specifications |
|---|---|
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | ANODIZE |
| SCALE DIVISION QUANTITY | 17 |
| SCALE UNIT OF MEASURE INSCRIPTION | MILLIMETERS 4 TO 0 TO 4. |
| INSCRIPTION COLOR | BLACK |
| OVERALL OUTSIDE DIAMETER | 2.990 INCHES MINIMUM AND 3.000 INCHES MAXIMUM |
| INSIDE DIAMETER | 2.745 INCHES MINIMUM AND 2.750 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.771 INCHES MINIMUM AND 0.774 INCHES MAXIMUM |
| MOUNTING CONFIGURATION | 3 HOLES 0.112-40 UNC-2B 120 DEGREE APART |
