NSN 6650-00-891-4534

Part Details | OPTICAL ELEMENT RETAINER

6650-00-891-4534 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.

Alternate Parts: 10547491, 10547491, 10547491, 6650-00-891-4534, 00-891-4534, 6650008914534, 008914534

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 18, 196700-891-453422451 ( RETAINER, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES

SHOULDERED

Cross Reference | NSN 6650-00-891-4534
Part Number Cage Code Manufacturer
105474918V613BOEING COMPANY, THEDBA BOEING
1054749102731MCDONNELL DOUGLAS HELICOPTER CO INC
1054749119200US ARMY ARDEC RDECOM
Technical Data | NSN 6650-00-891-4534
Characteristic Specifications
STYLE DESIGNATOR SHOULDERED
SHOULDER LENGTH0.143 INCHES NOMINAL
HOLE DIAMETER1.950 INCHES MINIMUM AND 1.960 INCHES MAXIMUM
OVERALL LENGTH0.178 INCHES MINIMUM AND 1.980 INCHES MAXIMUM
FLANGE THREAD SIZE2.125 IN.-32 UNS-2A
SHOULDER TAPER ANGLE IN DEGB32.0$$B38.0
TAPERED SHOULDER MINOR DIAMETER2.065 INCHES MINIMUM AND 2.085 INCHES MAXIMUM
MATERIAL ALUMINUM ALLOY 6061
DRIVE TYPE SLOTTED
HOLE OR SLOT QUANTITY2
DIAMETER2.125 INCHES NOMINAL
WIDTH0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
DRIVE FACILITY ANGULAR SPACING IN DEG90.0
RADIUS FROM GEOMETRIC AXIS TO HOLE CENTER1.045 INCHES NOMINAL
INTERNAL ANNULAR SERRATION NOT PROVIDED
GUIDE DESIGN THREAD CHAMFER
GUIDE LOCATION EDGE OPPOSITE DRIVE EDGE
SETSCREW NOTCH NOT PROVIDED
FSC APPLICATION DATAPROJECTOR,RETICLE