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NSN 5305-01-648-0043

High Torque Screw

About this product

Flat countersunk head style, 0.959 inches head diameter, 0.193 inches head height, grip diameter: between 0.498 inches and 0.499 inches .

Manufacturer part number NAS1158E11 for national stock number 5305016480043.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-648-0043.

  • MPN or Model

    NAS1158E11

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.453 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.959 inches
  • Head Height
    0.193 inches
  • Grip Diameter
    Between 0.498 inches and 0.499 inches
  • Shank Unthreaded Hole Diameter
    0.106 inches and 0.116 inches all holes
  • Point Style
    Flat
  • Internal Drive Style
    Offset cruciform (torque set)
  • Thread Diameter
    0.500 inches
  • Grip Length
    Between 0.678 inches and 0.698 inches
  • Thready Qty Per Inch (tpi)
    20
  • Min. Tensile Strength (psi)
    17460 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.018 inches all holes
  • Part Name Assigned By Controlling Agency
    Screw machine flat 100 degrees head close tolerance short thread offset crucform 160 ksi
  • Material
    Iron alloy 660
  • Material Specification
    Ams5737 assn standard single material response
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 type ii or viii federal specification single treatment response
  • Thread Series Designator
    Unjf
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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 5305016480043

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1158E11 National Aerospace Standards
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