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National Stock Number:
6650-01-256-9151
Federal Supply Class:
6650
National Item Identification Number:
012569151
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:
| 42282-1 | 09344 | ROCKWELL COLLINS, INC. DBA RC DISPLAYS SYSTEMS |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY | | OUTSIDE DIAMETER | 4.375 INCHES NOMINAL | | SPECIAL FEATURES | 63 MICROINCH SURFACE FINISH | | SCREW THREAD SERIES DESIGNATOR | UNS | | THREAD CLASS | 2A | | THREAD LOCATION | EXTERNAL | | THREAD PITCH DIAMETERS | +4.3484 TO 4.3533 INCHES |
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