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NSN 5306-01-283-7777

Close Tolerance Hex Head Bolt

About this product

Chamfer underside of head,45 degree all around.

Manufacturer part number 9942M17P09 for national stock number 5306012837777.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-283-7777.

  • MPN or Model

    9942M17P09

  • Schedule B
    7508.90.0000 (Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire))
  • NMF (National Motor Freight)
    139820 - Nickel Bolts/nails/nuts/rivets Etc
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.660 inches and 0.700 inches
  • Fastener Length
    Between 1.180 inches and 1.200 inches
  • Head Style
    Square
  • Head Height
    Between 0.115 inches and 0.125 inches
  • Width Between Flats
    Between 0.490 inches and 0.510 inches
  • Grip Diameter
    Between 0.2503 inches and 0.2505 inches
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.500 inches and 0.520 inches
  • Thready Qty Per Inch (tpi)
    28
  • Surface Finish
    63.0 microinches bearing surface of head
  • Material
    Nickel alloy uns n07001
  • Material Specification
    Ams 7471 assn standard single material response
  • Thread Series Designator
    Unjf
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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 5306012837777

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
9942M17P09 General Electric Company
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