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NSN 5306-01-058-8420

Close Tolerance Hex Head Bolt

About this product

Between 0.658 inches and 0.688 inches fastener length, spline extended washer head style, between 0.195 inches and 0.215 inches head height, extended washer diameter: between 0.349 inches and 0.359 inches .

Manufacturer part number MS21297-03004 for national stock number 5306010588420.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-058-8420.

  • MPN or Model

    MS21297-03004

  • 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.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.398 inches and 0.448 inches
  • Fastener Length
    Between 0.658 inches and 0.688 inches
  • Head Style
    Spline extended washer
  • Head Height
    Between 0.195 inches and 0.215 inches
  • Extended Washer Diameter
    Between 0.349 inches and 0.359 inches
  • Extended Washer Thickness
    Between 0.017 inches and 0.037 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1895 inches
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.240 inches and 0.260 inches
  • Thready Qty Per Inch (tpi)
    32
  • Hardness Rating
    45.0 rockwell c and 50.0 rockwell c
  • 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 5306010588420

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS21297-03004 National Aerospace Standards
MS21297-03004 Sps Technologies, Llc
MS21297-03004 Huck International, Inc.
MS21297-03004 Military Standards
MS21297-03004 Huck Intl Inc
VFK101G3-004 Valley-todeco, Inc.
Stock Check
Availability for this item was last checked on 09/01/22. The quantities and conditions available at the time were:
  • NE: 685
  • NS: 337