1240-00-864-6541 RETAINER,OPTICAL ELEMENT Index 1240-00-864-6543 RETAINER,OPTICAL ELEMENT

National Stock Number:
1240-00-864-6542

Federal Supply Class:
1240

National Item Identification Number:
008646542

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:
766050719200US ARMY ARDEC RDECOM


Techincal Specification:
DEPTH0.040 INCHES NOMINAL
DRIVE FACILITY ANGULAR SPACING IN DEG180.0
DRIVE TYPESLOTTED
HOLE DIAMETER0.660 INCHES MINIMUM AND 0.670 INCHES MAXIMUM
HOLE OR SLOT QUANTITY2
INTERNAL ANNULAR SERRATIONNOT PROVIDED
MATERIAL DOCUMENT AND CLASSIFICATIONWW-T-785, T3, TYPE 1-CANCELED FED SPEC SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 2024
OVERALL LENGTH0.180 INCHES NOMINAL
SETSCREW NOTCHNOT PROVIDED
SURFACE TREATMENTANODIZE
THREAD SIZE0.800 IN.-48 NS-2
WIDTH0.060 INCHES NOMINAL


Click here to Register for Free 30-day Trial