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National Stock Number:
5855-00-167-7893
Federal Supply Class:
5855
National Item Identification Number:
001677893
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:
| SC-C-635127 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| APERTURE DIAMETER | 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM | | INTERNAL FLANGE THICKNESS | 0.050 INCHES MINIMUM AND 0.065 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.375 INCHES NOMINAL | | OVERALL LENGTH | 0.266 INCHES MINIMUM AND 0.282 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY 6061 | | SCREW THREAD SERIES DESIGNATOR | UNS | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LOCATION | EXTERNAL | | THREAD PITCH DIAMETERS | +1.3522 TO 1.3559 INCHES | | THREAD LENGTH | 0.060 INCHES | | THREAD SIZE | 1 3/8-36 |
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