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National Stock Number:
5855-01-039-2842
Federal Supply Class:
5855
National Item Identification Number:
010392842
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:
| SM-D-850427 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | | SM-D-850427 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | SM-D-850427-1 | 04YE2 | VALCORE MANUFACTURING LLC | | SM-D-850427-1 | 20723 | VALCORE MANUFACTURING LLC | | SM-D-850427-1 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| APERTURE DIAMETER | 2.562 INCHES MINIMUM AND 2.565 INCHES MAXIMUM | | GROOVE DIAMETER | 1.460 INCHES MINIMUM AND 1.480 INCHES MAXIMUM | | INNER GROOVE WIDTH | 0.540 INCHES MINIMUM AND 0.560 INCHES MAXIMUM | | INTERNAL FLANGE THICKNESS | 0.104 INCHES NOMINAL | | OUTSIDE DIAMETER | 3.260 INCHES MINIMUM AND 3.280 INCHES MAXIMUM | | OVERALL LENGTH | 0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY 6061 |
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