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National Stock Number:
6650-01-155-3290
Federal Supply Class:
6650
National Item Identification Number:
011553290
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:
| 13144061 | 01147 | ARCH GEAR WORKS INC | | 13144061 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 13144061 | 1A228 | ABSTON MACHINE SHOP, INC. |
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Techincal Specification:
| APERTURE DIAMETER | 0.612 INCHES NOMINAL | | INTERNAL FLANGE THICKNESS | 1.900 INCHES NOMINAL | | OUTSIDE DIAMETER | 2.245 INCHES NOMINAL | | OVERALL LENGTH | 0.562 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING | | SURFACE TREATMENT | PASSIVATE AND OXIDE |
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