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National Stock Number:
5855-00-904-9469
Federal Supply Class:
5855
National Item Identification Number:
009049469
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:
| 13204E0958 | 97403 | CECOM LR CENTER | | 5855009049469 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | SC-D-627773 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | | 5855009049469 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE |
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Techincal Specification:
| FSC APPLICATION DATA | NIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION | | INTERNAL FLANGE THICKNESS | 0.157 INCHES MINIMUM AND 0.217 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY | | MOUNTING CONFIGURATION | 2 THREADED HOLES,4-4OUNC-2B | | OUTSIDE DIAMETER | 4.590 INCHES MINIMUM AND 4.650 INCHES MAXIMUM | | SPECIAL FEATURES | OVERALL THICKNESS OF 0.375 IN. PORM 0.030 IN. | | SURFACE TREATMENT | ANODIZE AND PAINT | | THREAD LOCATION | EXTERNAL |
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