Product Details | OPTICAL ELEMENT SPACER

1240-01-142-3805 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.

Part Alternates: 011423805

Fire Control Equipment | Optical Sighting and Ranging Equipment

Supply Group (FSG) NSN Assign. NIIN
12 01-142-3805

Drawings & Photos | NSN 1240-01-142-3805


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Technical Data | NSN 1240-01-142-3805

Characteristic Specifications
MATERIAL ALUMINUM ALLOY 6061
MATERIAL DOCUMENT AND CLASSIFICATION QQ-A-225/8,T651 FED SPEC SINGLE MATERIAL RESPONSE
STYLE DESIGNATOR B4 SPACER
OVERALL LENGTH 0.500 INCHES NOMINAL
STRAIGHT BORE DEPTH 0.477 INCHES NOMINAL
BODY OUTSIDE DIAMETER 1.817 INCHES MAXIMUM
TAPER BORE MINOR DIAMETER 1.625 INCHES MAXIMUM
TAPER ANGLE 45.0 DEGREES NOMINAL
MANUFACTURERS CODE 19207
DESIGN CONTROL REFERENCE 12310404

Restrictions/Controls & Freight Information | NSN 1240-01-142-3805

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Controlled Inventory Item Code:UUNCLASSIFIED
Category Code Description
No Freight Information