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National Stock Number:
1240-01-498-4245
Federal Supply Class:
1240
National Item Identification Number:
014984245
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:
| 5613064 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| DRIVE TYPE | RIM | | OUTSIDE DIAMETER | 1.944 INCHES MINIMUM AND 1.948 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING | | PART NAME ASSIGNED BY CONTROLLING AGENCY | MID EYEGUARD HOUSING | | SPECIAL FEATURES | RING HAS 11 X .060-80 UNI - 2B MOUNT HOLES |
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