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Self Locking Hex Nut NAS1291C8M

Description:

Thread: 1/2-20, self locking hex nut, low height, light weight, corrosion resistant steel

NAS1291C8M Details

National Stock Number (NSN) 5310-00-458-2115
Alternate Part Number N/A
Federal Supply Class (FSC) 5310
Unit of Measure (UOM) 2 /Ea.
Thread Class 3b
Thread Direction Right-hand
Locking Feature Prevailing torque all metal design
Washer Outside Diameter 0.814 inches
Lubrication Dry film lubricant
Overall Height Between 0.350 inches and 0.410 inches
Nut Style Hexagon
Washer Thickness 0.040 inches
Width Across Flats Between 0.556 inches and 0.566 inches
Tempurature Rating 450.0 degrees fahrenheit
Thread Series Unjf
Thready Qty Per Inch (tpi) 20
Thread Size 0.500 inches
Countersink Angle 120.0 degrees nut
Material Iron alloy 660
Material Specification Ams 5732 assn standard single material response or ams 5737 assn standard single material response or ams 5525 assn standard single material response
Surface Treatment Passivate

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