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NSN 5305-01-515-4533

High Torque Screw

About this product

0.511 inches fastener length, flat chamfer head style, between 0.266 inches and 0.303 inches head diameter, head height: 0.049 inches .

Manufacturer part number NAS4903U3 for national stock number 5305015154533.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-515-4533.

  • MPN or Model

    NAS4903U3

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.323 inches
  • Fastener Length
    0.511 inches
  • Head Style
    Flat chamfer
  • Head Diameter
    Between 0.266 inches and 0.303 inches
  • Head Height
    0.049 inches
  • Grip Diameter
    0.189 inches
  • Internal Drive Style
    Tri-wing recess
  • Thread Diameter
    0.190 inches
  • Grip Length
    0.188 inches
  • Thready Qty Per Inch (tpi)
    32
  • Material
    Titanium alloy uns r56400
  • Material Specification
    Ams4928 assn standard single material 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 5305015154533

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS4903U3 National Aerospace Standards
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