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National Stock Number:
1240-01-611-4549
Federal Supply Class:
1240
National Item Identification Number:
016114549
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:
| 12278935 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| FLANGE DIAMETER | 3.625 INCHES NOMINAL | | HOLE DIAMETER | 2.062 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING | | PART NAME ASSIGNED BY CONTROLLING AGENCY | RETAINER, HOUSING | | OVERALL LENGTH | 0.370 INCHES NOMINAL | | SHOULDER DIAMETER | 2.498 INCHES MINIMUM AND 2.499 INCHES MAXIMUM | | SHOULDER LENGTH | 0.250 INCHES NOMINAL | | SPECIAL FEATURES | HAS 6 EQUALLY SPACED MOUNTING HOLES AROUND THE FLANGE. THEY ARE 0.188 TO 0.198 INCH IN DIAMETER AND ARE TAPERED TO 0.369 INCHES IN DIAMETER. | | STYLE DESIGNATOR | SHOULDERED |
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