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NAS1766CL4

Locknut

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Description

Thread Size: 1/4", Nut Length: 1-5/64", Nut Height: 19/64

Specifications

Counterbore Diameter 0.254 inches nut
Distance From Aperture Center To Mounting Hole Center Between 0.495 inches and 0.505 inches
Features Provided Floating nut
Hardness Rating 49.0 rockwell c
Locking Feature Prevailing torque all metal design
Lubrication Dry film lubricant
Material Iron
Mounting Hole Arrangement Style 2 holes
Mounting Hole Diameter Between 0.098 inches and 0.103 inches
Nut Counterbore Depth 0.062 inches nut
Nut Height 0.312
Nut Length 1.079
Nut Mounting Provision Straight holes
Nut Style Plate
Specification Data 80205-nas1766 professional/industrial association standard
Temperature Rating 450.0 degrees fahrenheit
Thread Class 3b
Thread Direction Right-hand
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Unjf (fine thread with external controlled root radius)
Thread Size 0.250

Other sizes

Parts that share this base number, ordered by size. Always verify the full specification before substituting.

Cross-reference

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Catalog data updated 2026-07-05. Report a data error