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National Stock Number:
6650-01-271-7351
Federal Supply Class:
6650
National Item Identification Number:
012717351
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.
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Manufacturer Information:
| 13281208 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 13281208 | 3V055 | ANCO MACHINE, INC |
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Techincal Specification:
| GUIDE DESIGN | THREAD CHAMFER | | HOLE DIAMETER | 0.230 INCHES MINIMUM AND 0.235 INCHES MAXIMUM | | HOLE CHAMFER ANGLE IN DEG | 30.0 | | HOLE CHAMFER DIAMETER | 0.432 INCHES MINIMUM AND 0.436 INCHES MAXIMUM | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.371 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | | MATERIAL | STEEL COMP 416 | | RECESS ANGLE IN DEG | 30.0 | | RECESS DEPTH | 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM | | SETSCREW NOTCH | NOT PROVIDED | | STYLE DESIGNATOR | RECESSED | | TEST DATA DOCUMENT | 18876-13281208 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) | | THREAD SIZE | 0.562-32 UN-2A |
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