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Self Locking Hex Nut NAS1291-8

Description:

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

NAS1291-8 Details

National Stock Number (NSN) 5310-00-677-0659
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 0.814 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
Criticality Code Justification Feat
Special Features Weapon system essential
Material Steel
Surface Treatment Cadmium
Surface Treatment Specification QQ-P-416 federal specification single treatment response
Specification Data 80205-NAS1291 professional/industrial association standard

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