NSN 6650-01-204-5981

Part Details | OPTICAL ELEMENT SPACER

6650-01-204-5981 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: 8587342, 6650-01-204-5981, 01-204-5981, 6650012045981, 012045981

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66MAR 28, 198501-204-598122261 ( SPACER, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6650-01-204-5981
Part Number Cage Code Manufacturer
858734219200US ARMY ARDEC RDECOM
Technical Data | NSN 6650-01-204-5981
Characteristic Specifications
MATERIAL ALUMINUM ALLOY 2024
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225 TO 6,T351 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH0.164 INCHES NOMINAL
STRAIGHT BORE INSIDE DIAMETER0.350 INCHES NOMINAL
BODY OUTSIDE DIAMETER0.834 INCHES MAXIMUM
SPECIAL FEATURESSAWSLOT 0.057 IN. WIDE,0.050 DEEP,DYED BLACK FINISH