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Self Locking Hex Nut NAS1291C7M


Thread: 7/16-20, self locking hex nut, low height, light weight, corrosion resistant steel

NAS1291C7M Details

National Stock Number (NSN) 5310-00-052-6754
Alternate Part Number N/A
Federal Supply Class (FSC) 5310
Unit of Measure (UOM) 5 /Ea.
Thread Class 3B
Thread Direction Right-hand
Locking Feature Prevailing torque all metal design
Washer Outside Diameter 0.708 inches
Lubrication Dry film lubricant
Overall Height Between 0.313 inches and 0.328 inches
Nut Style Hexagon
Washer Thickness 0.035 inches
Width Across Flats Between 0.494 inches and 0.504 inches
Tempurature Rating 450.0 degrees Fahrenheit
Thread Series Unjf
Thready Qty Per Inch (tpi) 20
Thread Size 0.438 inches
Countersink Angle 120.0 degrees nut
Material Steel or iron alloy 660
Material Specification MS5525 military standard 1ST material response or ams 5732 assn standard 2ND material response or ams 5735 assn standard 2ND material response
Specification Data 80205-NAS1291 government standard

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