NSN 6650-00-885-0309
Part Details | DIOPTER SCALE
6650-00-885-0309 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: F59167, F591-67, F5916371PC67, F591-63-71PC67, 400533933PC67, 400-533933PC67, 6650-00-885-0309, 00-885-0309, 6650008850309, 008850309
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-885-0309 | 21868 ( SCALE, DIOPTER ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6650-00-885-0309
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| F591-67 | 34228 | L3 TECHNOLOGIES, INC.DBA L3 KEO |
| F591-63-71PC67 | 34228 | L3 TECHNOLOGIES, INC.DBA L3 KEO |
| 400-533933PC67 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
Technical Data | NSN 6650-00-885-0309
| Characteristic | Specifications |
|---|---|
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-E-15090, TYPE 3, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE |
| MATERIAL | ALUMINUM |
| SURFACE TREATMENT | ENAMEL |
| SCALE DIVISION QUANTITY | 4 |
| SCALE UNIT OF MEASURE INSCRIPTION | DEGREES 0 TO 1 PLUS,0 TO 3 MINUS |
| INSCRIPTION COLOR | WHITE |
| OVERALL OUTSIDE DIAMETER | 1.125 INCHES NOMINAL |
| INSIDE DIAMETER | 1.010 INCHES MINIMUM AND 1.013 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| MOUNTING CONFIGURATION | 1 SETSCREW |