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National Stock Number:
1240-01-076-2064
Federal Supply Class:
1240
National Item Identification Number:
010762064
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.
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Manufacturer Information:
| 12266507-2 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 12266507-2 | 20418 | DRS SUSTAINMENT SYSTEMS, INC. USE CAGE CODE 98255 FOR CATALOGING |
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Techincal Specification:
| APERTURE DIAMETER | 3.674 INCHES NOMINAL | | INTERNAL FLANGE THICKNESS | 0.187 INCHES NOMINAL | | OUTSIDE DIAMETER | 4.437 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 6061 | | SPECIAL FEATURES | RETAINER,SEAL DIOPTER RING,USED ON RIGHT SIDE; 7 HOLES EQUALLY SPACED,0.093 DIA THRU,0.187 DIA COUNTERBORE X 0.050 DEEP |
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