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MS21052-3K

Military Standard Locking Nutplate Self

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Description

MS21052-3K

Specifications

Center To Center Distance Between Mounting Holes Along Length Between 0.310 inches and 0.314 inches
Counterbore Diameter 0.194 inches nut
Distance From Aperture Center To Mounting Hole Center Between 0.339 inches and 0.349 inches
Hardness Rating 49.0 rockwell c
Locking Feature Prevailing torque all metal design
Material Iron
Material Specification Ams 5525 assn standard single material response or ams 5732 assn standard single material response or ams 5737 assn standard single material response
Mounting Hole Arrangement Style 2 holes
Mounting Hole Countersink Angle Between 98.0 degrees and 102.0 degrees
Mounting Hole Diameter Between 0.098 inches and 0.103 inches
Mounting Provision Location Opposite nut projection side
Nut Counterbore Depth 0.062 inches nut
Nut Height 0.250
Nut Length 0.950
Nut Mounting Provision Countersunk holes
Nut Style Plate
Plate Thickness 0.047
Plate Width Between 0.308 inches and 0.328 inches
Precious Material Silver
Precious Material And Location All surfaces silver
Surface Treatment Silver
Surface Treatment Specification Ams 2410 assn standard single treatment response
Temperature Rating 800.0 degrees fahrenheit
Thread Class 3b
Thread Direction Right-hand
Thread Qty 32
Thread Qty Per Inch (tpi) 32
Thread Series Unjf (fine thread with external controlled root radius)
Thread Size 0.190
Weight .005 lb

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