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National Stock Number:
1240-01-258-2395
Federal Supply Class:
1240
National Item Identification Number:
012582395
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:
| 704AS1033-1 AND 704AS1638-2 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER | | 704AS1033-1 AND 704AS1638-2 | 96214 | RAYTHEON COMPANY | | 704AS1638-2 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER | | 891638 | 96214 | RAYTHEON COMPANY |
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Techincal Specification:
| APERTURE DIAMETER | 5.570 INCHES NOMINAL | | INTERNAL FLANGE THICKNESS | 0.060 INCHES NOMINAL | | OUTSIDE DIAMETER | 6.970 INCHES NOMINAL | | OVERALL LENGTH | 1.540 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY |
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