|
|
|
National Stock Number:
1240-00-419-9558
Federal Supply Class:
1240
National Item Identification Number:
004199558
Description:
RING,RETAINING,OPTICAL ELEMENT
Detail:
A CYLINDRICAL ITEM HAVING AN INTERNALLY FLANGED DIAMETER DESIGNED TO RETAIN A LENS OR WINDOW IN THE OBJECTIVE END, OR A DIOPTER SCALE AT THE VIEWING END OF AN OPTICAL INSTRUMENT. IT MAY HAVE ONE OR MORE OF THE FOLLOWING CHARACTERISTICS: INTERNAL THREAD OR MACHINED FOR A PRESS FIT, METHOD OF SECURING, AND/OR KNURLED PERIPHERY. FOR EXTERNALLY THREADED ITEMS, SEE RETAINER, OPTICAL ELEMENT. EXCLUDES CELL, OPTICAL ELEMENT; NUT, PLAIN KNURLED; NUT, PLAIN ROUND; AND RING, RETAINING.
|
Manufacturer Information:
| 11731298 | 19200 | US ARMY ARDEC RDECOM |
|
Techincal Specification:
| APERTURE DIAMETER | 1.594 INCHES NOMINAL | | INTERNAL FLANGE THICKNESS | 0.062 INCHES NOMINAL | | MATERIAL | ALUMINUM | | MOUNTING CONFIGURATION | THREE HOLES 0.141 IN. DIA EQUALLY SPACED ON 2.062 IN. DIA CIRCLE | | OUTSIDE DIAMETER | 2.344 INCHES NOMINAL |
|
|