6650-00-829-4119 CELL ASSEMBLY,OPTICAL INSTRUMENT Index 6650-00-829-4121 RETAINER,OPTICAL ELEMENT

National Stock Number:
6650-00-829-4120

Federal Supply Class:
6650

National Item Identification Number:
008294120

Description:
RETAINER,OPTICAL ELEMENT

Detail:
A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see CELL, OPTICAL ELEMENT. Excludes RING, EXTERNALLY THREADED.


Manufacturer Information:
1604102033GYRUS ACMI L.P. DBA CIRCON-ACMI DIV


Techincal Specification:
DRIVE FACILITY ANGULAR SPACING IN DEG180.0
DRIVE TYPESLOTTED
DEPTH0.031 INCHES NOMINAL
FSC APPLICATION DATAANTENNA-RECEIVER-TRANSMITTER GROUP,MISSILE TRACKING
GUIDE DESIGNTHREAD CHAMFER
GUIDE LOCATIONEDGE OPPOSITE DRIVE EDGE
HOLE OR SLOT QUANTITY2
HOLE DIAMETER4.245 INCHES MINIMUM AND 4.255 INCHES MAXIMUM
INTERNAL ANNULAR SERRATIONNOT PROVIDED
OVERALL LENGTH0.125 INCHES NOMINAL
MATERIALALUMINUM
RECESS ANGLE IN DEG15.0
RECESS DEPTH0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM
SETSCREW NOTCHNOT PROVIDED
STYLE DESIGNATORRECESSED
WIDTH0.063 INCHES NOMINAL
THREAD SIZE4.500 IN.-32 NS-2A


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