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MS21059-3K

Military Standard Locking Nutplate Self

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Description

Nutplates

Specifications

Center To Center Distance Between Mounting Holes Along Length 0.686 inches minimum and 0.690 inches maximum
Counterbore Diameter 0.250 inches minimum nut and 0.270 inches maximum nut
Distance From Aperture Center To Mounting Hole Center 0.339 inches minimum and 0.349 inches maximum
Features Provided Floating nut
Hardness Rating 49.0 rockwell c maximum
Locking Feature Prevailing torque all metal design
Lubrication Dry film lubricant
Material Steel
Mounting Hole Arrangement Style 2 holes
Mounting Hole Countersink Angle 98.0 degrees minimum and 102.0 degrees maximum
Mounting Hole Diameter 0.098 inches minimum and 0.103 inches maximum
Mounting Provision Location Opposite nut projection side
Nut Counterbore Depth 0.062 inches nominal nut
Nut Height 0.250 inches maximum
Nut Length 0.948 inches maximum
Nut Mounting Provision Countersunk holes
Nut Style Plate
Plate Thickness 0.032 inches maximum
Plate Width 0.290 inches minimum and 0.416 inches maximum
Surface Treatment Cadmium
Surface Treatment Specification Qq-p-416,ty 2,cl 3 fed spec single treatment response
Temperature Rating 450.0 deg fahrenheit
Thread Class 3b
Thread Direction Right-hand
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