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NSN 5305-01-339-1413

High Torque Screw

About this product

Between 0.750 inches and 0.765 inches fastener length, flat countersunk undercut head style, between 0.477 inches and 0.508 inches head diameter, head height: between 0.713 inches and 0.733 inches .

Manufacturer part number CHT4067-4-5A for national stock number 5305013391413.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-339-1413.

  • MPN or Model

    CHT4067-4-5A

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.469 inches
  • Fastener Length
    Between 0.750 inches and 0.765 inches
  • Head Style
    Flat countersunk undercut
  • Head Diameter
    Between 0.477 inches and 0.508 inches
  • Head Height
    Between 0.713 inches and 0.733 inches
  • Grip Diameter
    Between 0.2485 inches and 0.2495 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.302 inches and 0.322 inches
  • Features Provided
    O ring and cetyl alcohol lubricant
  • Thready Qty Per Inch (tpi)
    28
  • Min. Tensile Strength (psi)
    125000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Surface Finish
    32.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads
  • Material
    Steel comp xm-13
  • Material Specification
    Ams 5629 assn standard single material response
  • Surface Treatment
    Aluminum and chromate
  • Surface Treatment Specification
    Mil-s-83488, ty2, cl3 military 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 5305013391413

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
CHT4067-4-5A Arconic Global Fasteners & Rings,
CHT4067-4-5A Alcoa Global Fasteners, Inc.
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