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NSN 5305-01-197-6831

High Torque Screw

About this product

Between 0.746 inches and 0.776 inches fastener length, pan no. 2 head style, between 0.357 inches and 0.373 inches head diameter, head height: between 0.103 inches and 0.118 inches .

Manufacturer part number NAS5203U7 for national stock number 5305011976831.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-197-6831.

  • MPN or Model

    NAS5203U7

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.323 inches
  • Fastener Length
    Between 0.746 inches and 0.776 inches
  • Head Style
    Pan no. 2
  • Head Diameter
    Between 0.357 inches and 0.373 inches
  • Head Height
    Between 0.103 inches and 0.118 inches
  • Grip Diameter
    Between 0.1890 inches and 0.1895 inches
  • Internal Drive Style
    Tri-wing recess
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.428 inches and 0.448 inches
  • Thready Qty Per Inch (tpi)
    32
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Material
    Titanium alloy
  • Material Specification
    Ams4928 assn standard single material response or ams4967 assn standard single material response
  • Thread Series Designator
    Unjf
  • Specification Data
    80205-nas5203 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 5305011976831

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS5203U7 National Aerospace Standards
NAS5203U7 National Aerospace Standards
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