NSN 6650-01-076-1997

Part Details | OPTICAL ELEMENT SPACER

6650-01-076-1997 A tubular shaped item designed to maintain a predetermined distance between optical elements, such as lenses, reticles, and the like. The bore may be straight, tapered or counterbored, and may have annular serrations to converge or diverge light rays. The surfaces, which mate with the optics, are usually chamfered, concave, and/or have a specified finish designation in the range of 1 to 125 microinches arithmetical average (AA). See also SPACER, SLEEVE and CELL, OPTICAL ELEMENT.

Alternate Parts: 12266753, 12266753, 6650-01-076-1997, 01-076-1997, 6650010761997, 010761997

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66MAY 03, 197901-076-199722261 ( SPACER, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6650-01-076-1997
Part Number Cage Code Manufacturer
1226675320418DRS SUSTAINMENT SYSTEMS, INC.Use CAGE Code 98255 for cataloging
1226675319207U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM
Technical Data | NSN 6650-01-076-1997
Characteristic Specifications
MATERIAL ALUMINUM ALLOY 6061
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225 TO 8,T651 FED SPEC SINGLE MATERIAL RESPONSE
SURFACE TREATMENT ANODIZE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
OVERALL LENGTH0.559 INCHES NOMINAL
FLANGE WIDTH0.230 INCHES NOMINAL
BODY DIAMETER3.090 INCHES NOMINAL
BODY OUTSIDE DIAMETER3.158 INCHES MAXIMUM
TAPER BORE MAJOR DIAMETER3.066 INCHES MAXIMUM
TAPER BORE MINOR DIAMETER2.745 INCHES MAXIMUM
TAPER ANGLE16.0 DEGREES NOMINAL
SPECIAL FEATURESSPACER-NO. 1,EYEPIECE; BLACK; 4 SLOTS 0.060 IN. WIDE BY 0.050 IN. DEEP; 0.081 IN. THROUGH HOLE WITH CENTER 0.290 IN. FROM TAPERED BORE EDGE; ESTABLISH LENGTH BY MEASURING SEPARATION BETWEEN REFERENCE SPHERE 1.990 RADIUS AND SURFACE B (REFERENCE RADIUS LOCATED 0.010 IN. FROM B EDGE)
END ITEM IDENTIFICATIONM901