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Engine Nut AN121502


Cadmium plated steel, thread: 1/4-28

AN121502 Details

National Stock Number (NSN) 5310-00-282-4778
Alternate Part Number N/A
Federal Supply Class (FSC) 5310
Unit of Measure (UOM) 10 /Ea.
Thread Class 3B
Thread Direction Right-hand
Nut Style Hexagon
Nut Height Between 0.209 inches and 0.229 inches
Width Across Flats Between 0.430 inches and 0.439 inches
Thread Series Unf
Thready Qty Per Inch (tpi) 28
Thread Size 0.250 inches
Countersink Angle 85.0 degrees nut and 95.0 degrees nut
Bearing Surface Type Chambered or washer faced
Bearing Surface Finish 63.0 microinches
Material Steel comp 8740
Material Specification Ams 6322 assn standard single material response
Surface Treatment Cadmium
Surface Treatment Specification Ams 2400 assn standard single treatment response

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