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National Stock Number:
1240-01-072-6395
Federal Supply Class:
1240
National Item Identification Number:
010726395
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:
| 12266675 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 6695-581 | 11871 | RECON/OPTICAL, INC. | | 6695-581 | 80294 | BOURNS INSTRUMENTS INC |
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Techincal Specification:
| APERTURE DIAMETER | 2.400 INCHES NOMINAL | | INTERNAL FLANGE THICKNESS | 0.600 INCHES NOMINAL | | OUTSIDE DIAMETER | 5.450 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ALLOY 356-T6 ASSN STD 1ST MATERIAL RESPONSE OR ALLOY 2024-T3 ASSN STD 2ND MATERIAL RESPONSE OR ALLOY 6061-T6 ASSN STD 3RD MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 356.0 OR ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 | | SURFACE TREATMENT | ANODIZE |
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