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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:
| STYLE DESIGNATOR | SHOULDERED | | SHOULDER LENGTH | 0.143 INCHES NOMINAL | | HOLE DIAMETER | 1.950 INCHES MINIMUM AND | | 1.960 INCHES MAXIMUM | | OVERALL LENGTH | 0.178 INCHES MINIMUM AND | | 1.980 INCHES MAXIMUM | | FLANGE THREAD SIZE | 2.125 IN.-32 UNS-2A | | SHOULDER TAPER ANGLE IN DEG | 32.0 AND | | 38.0 | | TAPERED SHOULDER MINOR DIAMETER | 2.065 INCHES MINIMUM AND | | 2.085 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY 6061 | | DRIVE TYPE | SLOTTED | | HOLE OR SLOT QUANTITY | 2 | | DIAMETER | 2.125 INCHES NOMINAL | | WIDTH | 0.178 INCHES MINIMUM AND | | 0.198 INCHES MAXIMUM | | DRIVE FACILITY ANGULAR SPACING IN DEG | 90.0 | | RADIUS FROM GEOMETRIC AXIS TO HOLE CENTER | 1.045 INCHES NOMINAL | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | GUIDE DESIGN | THREAD CHAMFER | | GUIDE LOCATION | EDGE OPPOSITE DRIVE EDGE | | SETSCREW NOTCH | NOT PROVIDED | | FSC APPLICATION DATA | PROJECTOR,RETICLE |
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