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National Stock Number:
1240-00-211-7182
Federal Supply Class:
1240
National Item Identification Number:
002117182
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:
| 435-11-3019 | 82577 | RAYTHEON COMPANY |
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Techincal Specification:
| APERTURE DIAMETER | 1.960 INCHES MINIMUM AND 1.980 INCHES MAXIMUM | | FSC APPLICATION DATA | AIRCRAFT GUNNERY FIRE CONTROL EQUIPMENT | | INTERNAL FLANGE THICKNESS | 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM | | OUTSIDE DIAMETER | 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM | | OVERALL LENGTH | 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY | | MOUNTING CONFIGURATION | SIX 0.169 IN. DIA MOUNTING HOLES EQUALLY SPACED ON 2.375 IN. DIA |
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