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NSN 5306-01-585-4675

Close Tolerance Hex Head Bolt

About this product

0.823 inches fastener length, fillister countersunk head style, 0.303 inches head diameter, head height: 0.012 inches .

Manufacturer part number NAS4903U8 for national stock number 5306015854675.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-585-4675.

  • MPN or Model

    NAS4903U8

  • Schedule B
    8108.90.8000 (Other wrought titanium, nesoi)
  • Thread Direction
    Right-hand
  • Thread Length
    0.323 inches
  • Fastener Length
    0.823 inches
  • Head Style
    Fillister countersunk
  • Head Diameter
    0.303 inches
  • Head Height
    0.012 inches
  • Grip Diameter
    Between 0.181 inches and 0.184 inches
  • Thread Diameter
    0.190 inches
  • Grip Length
    0.500 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Part Name Assigned By Controlling Agency
    Bolt 100 degrees reduced head, tri slot recess, close tolerance, 6al-4v titanium alloy short thread, nonlocking
  • Material
    Titanium alloy uns r56400
  • Material Specification
    Ams 4928 assn standard single material response or ams 4967 assn standard single material response
  • Thread Series Designator
    Unf
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Close Tolerance Bolt

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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 not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Mechanic Bill explains Close Tolerance Hex Head Bolt

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NSN 5306015854675

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS4903U8 National Aerospace Standards
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