NSN 6650-00-944-1399

Part Details | OPTICAL ELEMENT RETAINER

6650-00-944-1399 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: 10121189, 10121189, 6650-00-944-1399, 00-944-1399, 6650009441399, 009441399

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66MAR 04, 196600-944-139922451 ( RETAINER, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES

SHOULDERED

Cross Reference | NSN 6650-00-944-1399
Part Number Cage Code Manufacturer
1012118909205LOCKHEED MARTIN CORPELECTRONICS AND MISSILES DIV
1012118918876U S ARMY AVIATION AND MISSILECOMMAND
Technical Data | NSN 6650-00-944-1399
Characteristic Specifications
STYLE DESIGNATOR SHOULDERED
SHOULDER DIAMETER0.775 INCHES MINIMUM AND 0.795 INCHES MAXIMUM
SHOULDER LENGTH0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM
HOLE DIAMETER0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM
OVERALL LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
FLANGE THREAD SIZE0.875 IN.-32 UNS 2A
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225 TO 6, T351 FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL ALUMINUM ALLOY 2024
SURFACE TREATMENT ANODIZE
DRIVE TYPE SLOTTED
HOLE OR SLOT QUANTITY2
DIAMETER0.094 INCHES NOMINAL
WIDTH0.094 INCHES NOMINAL
DEPTH0.050 INCHES NOMINAL
DRIVE FACILITY ANGULAR SPACING IN DEG180.0
INTERNAL ANNULAR SERRATION NOT PROVIDED
GUIDE DESIGN THREAD CHAMFER
GUIDE LOCATION DRIVE EDGE
SETSCREW NOTCH NOT PROVIDED