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National Stock Number:
6650-01-285-9706
Federal Supply Class:
6650
National Item Identification Number:
012859706
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:
| 5525583 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| MATERIAL | COPPER ALLOY OR ALUMINUM ALLOY | | SPECIAL FEATURES | 125 MICROINCH SURFACE FINISH | | SCREW THREAD SERIES DESIGNATOR | UNS | | SURFACE TREATMENT | OXIDE | | THREAD CLASS | 3B | | THREAD PITCH DIAMETERS | +1.0150 TO 1.0185 INCHES | | THREAD LENGTH | 1.033 INCHES | | THREAD LOCATION | INTERNAL |
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