5855-01-165-2175 SPACER,OPTICAL ELEMENT Index 5855-01-165-2177 RING,RETAINING,OPTICAL ELEMENT

National Stock Number:
5855-01-165-2176

Federal Supply Class:
5855

National Item Identification Number:
011652176

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:
SM-D-8501340B107L3 TECHNOLOGIES, INC.
SM-D-85013427777L3 TECHNOLOGIES, INC.
SM-D-85013480063US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR


Techincal Specification:
DIAMETER5.312 INCHES NOMINAL
FSC APPLICATION DATANIGHT VISION EQUIP.,EMITTED AND REFLECTED RADIATION
GUIDE DESIGNTHREAD CHAMFER
HOLE DIAMETER5.000 INCHES NOMINAL
HOLE OR SLOT QUANTITY3
INTERNAL ANNULAR SERRATIONNOT PROVIDED
OVERALL LENGTH0.200 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/8, 6061, T6 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 6061
RECESS DEPTH0.100 INCHES NOMINAL
SETSCREW NOTCHNOT PROVIDED
SPECIAL TEST FEATURESINTEREST DRAWING IAW STANDARDS PRESCRIBED BY MIL-D-1000 CATEGORY E,FORM 1
STYLE DESIGNATORRECESSED
SURFACE TREATMENTPAINT


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