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National Stock Number:
1240-00-768-8717
Federal Supply Class:
1240
National Item Identification Number:
007688717
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:
| 1240007688717 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 7688717 | 19200 | US ARMY ARDEC RDECOM | | 7688717 | 50242 | ORION INSTRUMENT & TOOL MFG CORP |
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Techincal Specification:
| APERTURE DIAMETER | 0.947 INCHES MINIMUM AND 0.950 INCHES MAXIMUM | | FSC APPLICATION DATA | PERISCOPE,TANK | | GROOVE DIAMETER | 1.207 INCHES MINIMUM AND 1.217 INCHES MAXIMUM | | GROOVE LOCATION | ADJACENT TO INTERNAL FLANGE | | INNER GROOVE WIDTH | 0.056 INCHES MINIMUM AND 0.070 INCHES MAXIMUM | | INTERNAL FLANGE THICKNESS | 0.036 INCHES MINIMUM AND 0.044 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.310 INCHES MINIMUM AND 1.315 INCHES MAXIMUM | | OVERALL LENGTH | 0.399 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/3, T3 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2011 | | MOUNTING CONFIGURATION | INTERNAL THREAD | | SCREW THREAD SERIES DESIGNATOR | UNS | | SPECIAL FEATURES | CHAMFER 0.020 IN. BY 45 DEG ON ID OF FLANGE END. ONE SLOT 0.062 IN. WIDE,0.060 IN. DEEP BY 45 DEG ON FACE OF FLANGE END. | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 1,CLASS 2,BLACK MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | ANODIZE | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LOCATION | INTERNAL | | THREAD LENGTH | 0.296 INCHES | | THREAD SIZE | 1.203 IN.-48 |
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