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National Stock Number:
6650-00-789-8178
Federal Supply Class:
6650
National Item Identification Number:
007898178
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:
| 2493663 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 2493663 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| APERTURE DIAMETER | 2.812 INCHES NOMINAL | | FSC APPLICATION DATA | RADIO AND TELEVISION COMMUNICATIONS EQUIPMENT,NON-AIRBORNE | | INTERNAL FLANGE THICKNESS | 0.156 INCHES NOMINAL | | OUTSIDE DIAMETER | 3.250 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY | | MOUNTING CONFIGURATION | THREADED ON OUTSIDE DIA WITH 48NS-2A THD | | THREAD LOCATION | EXTERNAL |
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