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NSN 5305-00-525-9313

High Torque Screw

About this product

1.900 inches fastener length, flat countersunk head style, between 0.930 inches and 0.940 inches head diameter, grip diameter: between 0.4982 inches and 0.4991 inches .

Manufacturer part number 90-8452 for national stock number 5305005259313.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-00-525-9313.

  • MPN or Model

    90-8452

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    095190 - Hardware, NOI
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.400 inches
  • Fastener Length
    1.900 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.930 inches and 0.940 inches
  • Grip Diameter
    Between 0.4982 inches and 0.4991 inches
  • Shank Unthreaded Hole Diameter
    0.106 inches first hole and 0.111 inches first hole
  • Internal Drive Style
    Cross recess type 1
  • Thread Diameter
    0.500 inches
  • Grip Length
    1.500 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Countersink Angle
    100.0 degrees
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.760 inches first hole
  • Surface Finish
    63.0 microinches threads
  • Material
    Steel comp 4340
  • Material Specification
    Mil-s-5000 military specification single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416 type 1 cl 3 federal specification single treatment response
  • Thread Series Designator
    Unf
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Close Tolerance Screw

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Mechanic Bill explains High Torque Screw

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NSN 5305005259313

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
90-8452 The Boeing Company
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