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National Stock Number:
1240-01-172-2121
Federal Supply Class:
1240
National Item Identification Number:
011722121
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:
| 82A5027A1506 | 01365 | MARINE CORPS LOGISTICS COMMAND TECHNICAL DATA REPOSITORY CUSTOMER SERVICE-MICC LOGISTICS OPERATIONS CENTER | | 82A5027A1506 | 27777 | L3 TECHNOLOGIES, INC. |
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Techincal Specification:
| APERTURE DIAMETER | 12.5 MILLIMETERS MINIMUM AND 12.9 MILLIMETERS MAXIMUM | | INTERNAL FLANGE THICKNESS | 1.27 MILLIMETERS NOMINAL | | OUTSIDE DIAMETER | 31.63 MILLIMETERS MINIMUM AND 31.87 MILLIMETERS MAXIMUM | | OVERALL LENGTH | 7.63 MILLIMETERS MINIMUM AND 7.87 MILLIMETERS MAXIMUM | | MATERIAL | ALUMINUM ALLOY A413.0 | | MOUNTING CONFIGURATION | TWO HOLES ON 25.2 MM MINIMUM AND 25.6 MM MAXIMUM CIRCLE,3.0 MM MINIMUM AND 4.0 MM MAXIMUM DIA |
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