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12 Point Self Locking Nut NAS1805-4


Thread: 1/4-28, 12 point self locking nut, extended washer, corrosion resistant steel

NAS1805-4 Details

National Stock Number (NSN) 5310-01-196-0241
Alternate Part Number N/A
Federal Supply Class (FSC) 5310
Unit of Measure (UOM) 10 /Ea.
Thread Class 3B
Thread Direction Right-hand
Locking Feature Prevailing torque all metal design
Washer Outside Diameter 0.434 inches
Lubrication Dry film lubricant
Overall Height 0.250 inches
Nut Style Double hexagon
Washer Thickness 0.020 inches
Width Across Flats Between 0.305 inches and 0.313 inches
Tempurature Rating 450.0 degrees Fahrenheit
Thread Series Unjf
Thready Qty Per Inch (tpi) 28
Thread Size 0.250 inches
Material Iron alloy 660
Material Specification Ams 5731 assn standard single material response
Surface Treatment Passivate
Surface Treatment Specification QQ-P-35 federal specification single treatment response
Specification Data 80205-NAS1805 professional/industrial association standard

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