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NSN 5306-01-059-1948

Close Tolerance Hex Head Bolt

About this product

Between 4.848 inches and 4.878 inches fastener length, spline extended washer head style, between 0.690 inches and 0.710 inches head height, extended washer diameter: between 1.615 inches and 1.625 inches .

Manufacturer part number MS21297-14056 for national stock number 5306010591948.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-059-1948.

  • MPN or Model

    MS21297-14056

  • 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)
  • Unit Weight (Est.)
    1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 1.338 inches and 1.388 inches
  • Fastener Length
    Between 4.848 inches and 4.878 inches
  • Head Style
    Spline extended washer
  • Head Height
    Between 0.690 inches and 0.710 inches
  • Extended Washer Diameter
    Between 1.615 inches and 1.625 inches
  • Extended Washer Thickness
    Between 0.116 inches and 0.136 inches
  • Grip Diameter
    Between 0.8730 inches and 0.8740 inches
  • Thread Diameter
    0.875 inches
  • Grip Length
    Between 3.490 inches and 3.510 inches
  • Thready Qty Per Inch (tpi)
    14
  • Surface Finish
    32.0 microinches grip
  • Material
    Steel comp h11
  • Surface Treatment
    Cadmium
  • 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 5306010591948

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS21297-14056 National Aerospace Standards
MS21297-14056 Acufast Aircraft Products Inc.
MS21297-14056 Military Standards
MS21297-14056 Huck Intl Inc
MS21297-14056 Huck International, Inc.
MS21297-14056 Sps Technologies, Llc
MS21297-14056 Sps Technologies, Llc
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