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NSN 5305-01-411-7917

High Torque Screw

About this product

Between 1.673 inches and 1.703 inches fastener length, flat countersunk head style, 0.635 inches head diameter, grip diameter: between 0.3110 inches and 0.3120 inches .

Manufacturer part number NAS7505D20 for national stock number 5305014117917.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-411-7917.

  • MPN or Model

    NAS7505D20

  • 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
    0.438 inches
  • Fastener Length
    Between 1.673 inches and 1.703 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.635 inches
  • Grip Diameter
    Between 0.3110 inches and 0.3120 inches
  • Shank Unthreaded Hole Diameter
    0.076 inches first hole and 0.086 inches first hole
  • Single Shear Strength
    95000 pounds per square inch
  • Internal Drive Style
    Cross recess type iii
  • Thread Diameter
    0.3125 inches
  • Grip Length
    Between 1.240 inches and 1.260 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.496 inches first hole and 1.516 inches first hole
  • Color
    Green threads
  • Material
    Iron alloy 660
  • Material Specification
    Ams 5731 assn standard single material response or ams 5737 assn standard single material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416, ty2 cl2 federal specification single treatment response
  • Thread Series Designator
    Unjf
  • Specification Data
    80205-nas7505 professional/industrial association standard
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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 5305014117917

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS7505D20 National Aerospace Standards
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