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National Stock Number:
1430-00-180-6892
Federal Supply Class:
1430
National Item Identification Number:
001806892
Description:
RING,RETAINING,OPTI
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:
| 10219333 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| OUTSIDE DIAMETER | 2.530 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-A-21180, A356,TEMPER, T61 MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY A356.0 | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 2,CLASS 2,BLACK MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | ANODIZE | | THREAD LOCATION | INTERNAL |
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