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Self Locking Hex Nut NAS1291-9


Thread: 9/16-18, self locking hex nut, low height, light weight, cadmium plated steel

NAS1291-9 Details

National Stock Number (NSN) 5310-00-224-0471
Alternate Part Number N/A
Federal Supply Class (FSC) 5310
Unit of Measure (UOM) 4 /Ea.
Thread Class 3b
Thread Direction Right-hand
Locking Feature Prevailing torque all metal design
Washer Outside Diameter 0.912 inches
Lubrication Dry film lubricant
Overall Height Between 0.420 inches and 0.480 inches
Nut Style Hexagon
Washer Thickness 0.045 inches
Width Across Flats Between 0.680 inches and 0.692 inches
Tempurature Rating 450.0 degrees fahrenheit
Thread Series Unjf
Thready Qty Per Inch (tpi) 18
Thread Size 0.562 inches
Countersink Angle 120.0 degrees nut
Material Steel
Surface Treatment Cadmium
Surface Treatment Specification Qq-p-416, type 1, cl 3 federal specification single treatment response
Specification Data 80205-nas1291 government standard

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