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NAS680C3M

Two Lug Locknut Plate

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Description

Thread Size: 3/16", Nut Length: 15/16", Nut Height: 1/4"

Specifications

Center To Center Distance Between Mounting Holes Along Length 0.686 inches minimum and 0.690 inches maximum
Distance From Aperture Center To Mounting Hole Center 0.339 inches minimum and 0.349 inches maximum
Hardness Rating 49.0 rockwell c maximum
Locking Feature Prevailing torque all metal design
Lubrication Dry film lubricant
Material Iron
Material Specification Ams 5732 assn std single material response or ams 5737 assn std single material response or ams 5525 assn std single material response
Mounting Hole Arrangement Style 2 holes
Mounting Hole Diameter 0.098 inches minimum and 0.103 inches maximum
Nut Height 0.250 inches maximum
Nut Length 0.948 inches maximum
Nut Mounting Provision Straight holes
Nut Style Plate
Plate Thickness 0.047 inches maximum
Plate Width 0.308 inches minimum and 0.328 inches maximum
Surface Treatment Passivate
Temperature Rating 450.0 deg fahrenheit
Thread Class 3b
Thread Direction Right-hand
Thread Qty 32
Thread Qty Per Inch (tpi) 32
Thread Series UNJF
Thread Size 0.190

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