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Nutplate MS21055-4

Description:

1/4-28 thread, self-locking corner nutplate, low height, cadmium plated carbon steel, 450° , , without dry-film lube, plain rivet holes

MS21055-4 Details

National Stock Number (NSN) 5310-00-779-3514
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
Counterbore Diameter 0.254 inches nut
Lubrication Soluble lubricant
Mounting Hole Diameter Between 0.098 inches and 0.103 inches
Nut Style Plate
Nut Length 0.852 inches
Nut Height 0.281 inches
Plate Thickness 0.055 inches
Nut Counterbore Depth 0.062 inches nut
Nut Mounting Provision Straight holes
Mounting Hole Arrangement Style 2 holes
Distance From Aperture Center To Mounting Hole Center Between 0.495 inches and 0.505 inches
Tempurature Rating 450.0 degrees Fahrenheit
Thread Series Unjf
Thready Qty Per Inch (tpi) 28
Hardness Rating 49.0 Rockwell c
Thread Size 0.250 inches
Material Steel
Surface Treatment Cadmium and chromate
Surface Treatment Specification QQ-P-416, type 2, cl 2 federal specification all treatment responses

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