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National Stock Number:
6650-00-891-4534
Federal Supply Class:
6650
National Item Identification Number:
008914534
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:
| 10547491 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC | | 10547491 | 19200 | US ARMY ARDEC RDECOM | | 10547491 | 8V613 | THE BOEING COMPANY |
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Techincal Specification:
| DRIVE TYPE | SLOTTED | | DRIVE FACILITY ANGULAR SPACING IN DEG | 90.0 | | DIAMETER | 2.125 INCHES NOMINAL | | FLANGE THREAD SIZE | 2.125 IN.-32 UNS-2A | | FSC APPLICATION DATA | PROJECTOR,RETICLE | | GUIDE DESIGN | THREAD CHAMFER | | GUIDE LOCATION | EDGE OPPOSITE DRIVE EDGE | | HOLE OR SLOT QUANTITY | 2 | | HOLE DIAMETER | 1.950 INCHES MINIMUM AND 1.960 INCHES MAXIMUM | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | MATERIAL | ALUMINUM ALLOY 6061 | | OVERALL LENGTH | 0.178 INCHES MINIMUM AND 1.980 INCHES MAXIMUM | | RADIUS FROM GEOMETRIC AXIS TO HOLE CENTER | 1.045 INCHES NOMINAL | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER LENGTH | 0.143 INCHES NOMINAL | | SHOULDER TAPER ANGLE IN DEG | 32.0 AND 38.0 | | STYLE DESIGNATOR | SHOULDERED | | TAPERED SHOULDER MINOR DIAMETER | 2.065 INCHES MINIMUM AND 2.085 INCHES MAXIMUM | | WIDTH | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
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