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National Stock Number:
5855-01-259-8376
Federal Supply Class:
5855
National Item Identification Number:
012598376
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:
| 2001687-1 | 96214 | RAYTHEON COMPANY |
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Techincal Specification:
| APERTURE DIAMETER | 1.550 INCHES NOMINAL | | INTERNAL FLANGE THICKNESS | 0.025 INCHES NOMINAL | | OUTSIDE DIAMETER | 2.252 INCHES MINIMUM AND 2.262 INCHES MAXIMUM | | MATERIAL | STEEL COMP 303 | | MOUNTING CONFIGURATION | FOUR 0.125 IN. DIA. UNTHREADED HOLES |
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